Claudia Zahn<p>Check Out This Awesome Cobaltoan <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> from Mupine Mine, Kolwezi, DR <a href="https://mastodon.social/tags/Congo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Congo</span></a>.</p><p>Photo Copyright ©️ Mineral Masterpiece<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
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#calcite
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Claudia Zahn<p>Golden <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> in a fossilized clam shell from Florida.</p><p>Image: Exceptional Minerals<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Spherocobaltite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Spherocobaltite</span></a>, <a href="https://mastodon.social/tags/Dolomite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dolomite</span></a>, <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a><br>From: Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of <a href="https://mastodon.social/tags/Congo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Congo</span></a><br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>Crystal ❤️<br><a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> in Fossil Shell<br>From: St. Lucie County, Florida<br>Size: 13 x 7.5 x 5 cm<br>Photo by: Marin Mineral<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>Deep purple <a href="https://mastodon.social/tags/Fluorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fluorite</span></a> cubes on <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> matrix with scattered fine orange <a href="https://mastodon.social/tags/Sphalerite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sphalerite</span></a> crystals, from the Elmwood Mine, Carthage, Tennessee, USA.<br>Photo: Fine mineral photography<br>László Kupi<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Fluorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fluorite</span></a> with <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> and <a href="https://mastodon.social/tags/Quartz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Quartz</span></a>, 3.5cm, Yongchun Co., Quanzhou, Fujian, <a href="https://mastodon.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a>.<br>Jingnan (Tom) Zhang Coll & Photo<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Stibnite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stibnite</span></a> with <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a><br><a href="https://mastodon.social/tags/Mexico" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mexico</span></a><br>40 mm longest blade<br>Photo by Steve Young<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>A realgar crystal from Hunan, <a href="https://mastodon.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a> before and after being exposed to light and humidity with double-terminated <a href="https://mastodon.social/tags/calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calcite</span></a> crystals. 5cm.<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> on bicolor <a href="https://mastodon.social/tags/Fluorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fluorite</span></a><br>Minerva Mine, Illinois<br>Photo by Anton Watzl<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
IT News<p>Shedding Light on Quantum Measurement with Calcite - Have you ever struggled with the concept of quantum measurement, feeling it’s unne... - <a href="https://hackaday.com/2025/01/26/shedding-light-on-quantum-measurement-with-calcite/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/01/26/sheddi</span><span class="invisible">ng-light-on-quantum-measurement-with-calcite/</span></a> <a href="https://schleuss.online/tags/quantummeasurement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quantummeasurement</span></a> <a href="https://schleuss.online/tags/quantummechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>quantummechanics</span></a> <a href="https://schleuss.online/tags/entanglement" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>entanglement</span></a> <a href="https://schleuss.online/tags/laserhacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>laserhacks</span></a> <a href="https://schleuss.online/tags/homehacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>homehacks</span></a> <a href="https://schleuss.online/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>science</span></a> <a href="https://schleuss.online/tags/calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calcite</span></a> <a href="https://schleuss.online/tags/photons" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>photons</span></a> <a href="https://schleuss.online/tags/optics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>optics</span></a> <a href="https://schleuss.online/tags/light" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>light</span></a> <a href="https://schleuss.online/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>news</span></a></p>
Claudia Zahn<p>Rose of beige <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> blades of 4 cm in diameter atop blue Fluorite on top of a doubly terminated <a href="https://mastodon.social/tags/Quartz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Quartz</span></a> crystal of 4 cm in length from Chenzhou, Hunan Province, <a href="https://mastodon.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a>.40x50x70 mm<br>Photo ©️ @albertrussphotography<br>By GB Gems & Treasures<br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> and <a href="https://mastodon.social/tags/Quartz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Quartz</span></a><br>Romania<br>Photo by Saphira Minerals<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Realgar" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Realgar</span></a> on <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a><br><a href="https://mastodon.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a><br>Photo by Noor Ullah<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Amethyst" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Amethyst</span></a> & <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a><br>Artigas, <a href="https://mastodon.social/tags/Uruguay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Uruguay</span></a><br>Photo by Thomas Spann of <a href="https://mastodon.social/tags/MineralMasterpiece" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMasterpiece</span></a><br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Or M. Bialik<p><a href="https://mastodon.world/tags/WeekendReading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WeekendReading</span></a>: Mavromatis et al., on the role of sulfate in modifying the kinetic and equilibrium <a href="https://mastodon.world/tags/Magnesium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Magnesium</span></a> isotope fractionation between fluid and low-Mg calcite. Might be important down the line to understand the long-term Mg cycles in <a href="https://mastodon.world/tags/calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calcite</span></a> and <a href="https://mastodon.world/tags/aragonite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aragonite</span></a> <a href="https://mastodon.world/tags/seas" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>seas</span></a>. <br><a href="https://doi.org/10.1016/j.gca.2024.12.011" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.1016/j.gca.2024.12.</span><span class="invisible">011</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a><br><a href="https://mastodon.social/tags/Tennessee" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tennessee</span></a><br>Photo by Kiyoshi Kiikuni<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a> / Karen Kemp<br><a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p><a href="https://mastodon.social/tags/Baryte" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Baryte</span></a> on <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> and <a href="https://mastodon.social/tags/sandstone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sandstone</span></a> matrix<br>Sidmouth, <a href="https://mastodon.social/tags/UK" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UK</span></a><br>Photo by Louis Verschuren<br>By <a href="https://mastodon.social/tags/GeologicalWondersToo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologicalWondersToo</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>Rose of beige <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> blades of 4 cm in diameter atop blue <a href="https://mastodon.social/tags/Fluorite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fluorite</span></a> on top of a doubly terminated Quartz crystal of 4 cm in length from Chenzhou, Hunan Province, China.40x50x70 mm<br>Photo ©️ @albertrussphotography <br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>Crazy <a href="https://mastodon.social/tags/Manganese" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Manganese</span></a>-Bearing <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a>! ~ 9.3 cm 😜From Inner Mongolia, <a href="https://mastodon.social/tags/China" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>China</span></a>.<br>Photo Copyright ©️ Mineral Masterpiece<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
Claudia Zahn<p>Check Out This Awesome Cobaltoan <a href="https://mastodon.social/tags/Calcite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcite</span></a> from Mupine Mine, Kolwezi, DR <a href="https://mastodon.social/tags/Congo" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Congo</span></a>.<br>Photo Copyright ©️ Mineral Masterpiece<br>By <a href="https://mastodon.social/tags/GeologyWonders" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyWonders</span></a><br><a href="https://mastodon.social/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.social/tags/GeologyPage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeologyPage</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.social/tags/Crystals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystals</span></a> <a href="https://mastodon.social/tags/Gems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Gems</span></a> <a href="https://mastodon.social/tags/Nature" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nature</span></a> <a href="https://mastodon.social/tags/NatureLovers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NatureLovers</span></a> <a href="https://mastodon.social/tags/NaturePhotography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NaturePhotography</span></a> <a href="https://mastodon.social/tags/Photographer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photographer</span></a> <a href="https://mastodon.social/tags/RockPorn" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RockPorn</span></a></p>
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