History_of_Geology<p>April 14, 1895, died <a href="https://mstdn.social/tags/OTD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OTD</span></a> James Dwight Dana. American geologist & zoologist, best known to students thanks to his books "System of Mineralogy" & "Manual of Mineralogy."<br>His manual is still a standard college textbook in the U.S. and has been continuously revised and updated by a succession of editors.<br>Dana's "System" proposed to classify minerals based on their chemistry, beginning with native elements and ending with complex silicates 💎<br> <a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p><p><a href="https://en.wikipedia.org/wiki/James_Dwight_Dana" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">en.wikipedia.org/wiki/James_Dw</span><span class="invisible">ight_Dana</span></a></p>
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#MineralMonday
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History_of_Geology<p>I met a traveller from an antique land... 💎<br>February 24, 2014, a 4.404 billion-year-old zircon crystal from Western Australia’s Jack Hills region is announced to be the oldest known mineral on Earth (with Earth being ~4.51 billion years old) <a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p>
Don Ray<p><a href="https://mastodon.online/tags/Minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Minerals</span></a> <a href="https://mastodon.online/tags/Rocks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Rocks</span></a> <a href="https://mastodon.online/tags/Geodes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geodes</span></a> <a href="https://mastodon.online/tags/Quartz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Quartz</span></a> <a href="https://mastodon.online/tags/Iowa" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Iowa</span></a></p><p>Happy <a href="https://mastodon.online/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a>! (Not sure if that’s a thing😀). </p><p>Behold a Keokuk Geode collected by me in the sunny days of my youth!</p><p>We used to ride our bikes across the Mississippi River bridge to a small stream on the Illinois side. The geodes were in the stream and in the exposed dirt of the stream bank.</p>
History_of_Geology<p>Saussurite was named after him in 1806 by his son Nicolas T. de Saussure. However, saussurite is not single mineral but a mineral aggregate which is formed as an alteration product of plagioclase feldspar <a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a><br>📷 by <a href="https://alexstrekeisen.it/pluto/saussurite.php" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">alexstrekeisen.it/pluto/saussu</span><span class="invisible">rite.php</span></a><br>Image</p>
History_of_Geology<p>January 27, 1756, birthday of Austrian musician & composer Wolfgang Amadeus <a href="https://mstdn.social/tags/Mozart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mozart</span></a>.<br>The mineral Mozartite - a rare metamorphic manganese silicate - is dedicated to Mozart as it was described in the Mozart-year 2006 💎<a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p><p> <a href="https://mindat.org/min-2799.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">mindat.org/min-2799.html</span><span class="invisible"></span></a></p>
Erbse // HollenkrautZum heutigen <a href="https://pixelfed.social/discover/tags/mineralmonday?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#mineralmonday</a> habe ich das Stück hier aus meiner Sammlung ausgewählt. :D Es ist ein Amethyst auf mehreren Bergkristallen.<br>
Ich habe ihn Second Hand gekauft, aber ganz ursprünglich kommt er wohl aus Malaimbandy, Miandravazo in Madagaskar.<br>
<br>
<a href="https://pixelfed.social/discover/tags/mineraliensammlung?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#mineraliensammlung</a> <a href="https://pixelfed.social/discover/tags/mineralien?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#mineralien</a> <a href="https://pixelfed.social/discover/tags/steinesammeln?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#steinesammeln</a> <a href="https://pixelfed.social/discover/tags/autisticwitch?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#autisticwitch</a> <a href="https://pixelfed.social/discover/tags/steineundmineralien?src=hash" class="u-url hashtag" rel="nofollow noopener noreferrer" target="_blank">#steineundmineralien</a>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> 💎 In 1774, self-taught cartographers Peter Anich and Blasius Hueber published the first map of Tyrol, including a signature showing an "alpine glacier where crystals are found."</p><p>Quartz crystals in an alpine kluft found a few years ago at Stampfl Ferner, approximately in the same area.</p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> 💎 December 22, 1719, the Italian count Von Piazza obtains the permit to search and extract "jasper and agate" from the lava rocks outcropping near the small Tyrolean town of Teis. These geodes are still known today as "Teiser Kugeln" meaning "Teis Spheres"💎</p>
History_of_Geology<p>December 16, 1631, San Gennaro, patron of Naples, miraculously stops the lava-flows coming from Mount Vesuvius 🌋 </p><p>As a sign of divine power, in the lava appeared also cross-shaped augite crystals 💎 <a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> 💎 December 9, 2017, "<a href="https://mstdn.social/tags/StarWars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>StarWars</span></a>: The Last Jedi" premieres, featuring in one famous battle scene what seems to be a planet covered by white sodium chloride known on Earth as halite & red potassium chloride also known as sylvite.</p><p><a href="http://bressan-geoconsult.eu/the-geology-of-star-wars/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">http://</span><span class="ellipsis">bressan-geoconsult.eu/the-geol</span><span class="invisible">ogy-of-star-wars/</span></a></p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> Calcite scalenohedra from a very rare find a few years ago in the Laaser marble, Tyrol. Once considered a cheap alternative to the famous Carrara marble, the Laaser/Lasa marble has been/is used in buildings worldwide 💎<br>Largest crystal face length 4cm.</p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> Characteristic dark-green epidote on fibrous chrysotile from the Knappenwand, Hohe Tauern, Austria. This historic site discovered in 1865 & (mostly) active between 1909 to 1922 provided some of the best examples of epidote crystals worldwide 💎<br>Largest crystal is 3cm in length.</p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> November 4, 1922, pharao <a href="https://mstdn.social/tags/Tutankhamun" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tutankhamun</span></a>'s tomb discovered. One month later archaeologist Howard Carter will uncover a breastplate with a mysterious gemstone, still puzzling <a href="https://mstdn.social/tags/geologists" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geologists</span></a> to this day as "it's not from this <a href="https://mstdn.social/tags/earth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earth</span></a>" <br>💎☄️<br><a href="https://www.forbes.com/sites/davidbressan/2019/05/19/gemstone-found-in-king-tuts-tomb-formed-when-a-meteor-collided-with-earth/?fbclid=IwY2xjawGVfxRleHRuA2FlbQIxMAABHRMyL3axmT4tJ4bu2aQuFgq2LykNsB-svVWD2IJaF8Yy730mx6t1UWi4SQ_aem_wPefukPfj_DAEY54XG5eaw#7411351a6e01" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">forbes.com/sites/davidbressan/</span><span class="invisible">2019/05/19/gemstone-found-in-king-tuts-tomb-formed-when-a-meteor-collided-with-earth/?fbclid=IwY2xjawGVfxRleHRuA2FlbQIxMAABHRMyL3axmT4tJ4bu2aQuFgq2LykNsB-svVWD2IJaF8Yy730mx6t1UWi4SQ_aem_wPefukPfj_DAEY54XG5eaw#7411351a6e01</span></a></p>
bse<p>Pyromorphite, Daoping Mine, China <a href="https://toad.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p>
History_of_Geology<p><a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> As of September 2024, there are 6.079 valid minerals according to the International Mineralogical Association 💎<br><a href="https://cnmnc.units.it/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">cnmnc.units.it/</span><span class="invisible"></span></a></p><p>Table from "Die Mineralien" (1904) showing typical crystals of sulfur, diamond, aragonite, calcite, baryte, coelestine, gypsum, apatite and fluorite 💎</p>
peachfront<p>Return of the <a href="https://toot.community/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> photographs...</p><p>a tiny (roughly quail egg sized) thunderegg nugget that hubby cut open so i could polish the blue agate and crystal face, you can also see a white "waterline," I believe that's calcite?</p><p><a href="https://toot.community/tags/Photograph" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photograph</span></a> <a href="https://toot.community/tags/PhotoADay" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PhotoADay</span></a> <a href="https://toot.community/tags/Project365" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Project365</span></a> <a href="https://toot.community/tags/Mineral" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mineral</span></a> <a href="https://toot.community/tags/Crystal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Crystal</span></a> <a href="https://toot.community/tags/Thunderegg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Thunderegg</span></a> <a href="https://toot.community/tags/Hobbies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hobbies</span></a></p>
John Faithfull 🌍🇪🇺🏴🧡✊🏻✊🏿<p><a href="https://mastodon.scot/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> Here's an old image of a wonderful deep orange pyromorphite specimen from Leadhills, probably mined in the early C19th, in the collections of the Hunterian Museum at University of Glasgow. <a href="https://mastodon.scot/tags/Geology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geology</span></a> <a href="https://mastodon.scot/tags/Mineral" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mineral</span></a> <a href="https://mastodon.scot/tags/Pyromorphite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pyromorphite</span></a> <a href="https://mastodon.scot/tags/Leadhills" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Leadhills</span></a> <a href="https://mastodon.scot/tags/Scotland" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Scotland</span></a></p>
History_of_Geology<p>June 17, 1832, birthday of British chemist William Crookes. In 1861 he discovered the metallic element thallium. <br>Hutchinsonite is one of the few <a href="https://mstdn.social/tags/minerals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>minerals</span></a> incorporating thallium in its crystal structure💎 <a href="https://mstdn.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> </p><p><a href="https://mindat.org/min-1954.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">mindat.org/min-1954.html</span><span class="invisible"></span></a></p>
peachfront<p><a href="https://toot.community/tags/Fotomontag" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fotomontag</span></a> <a href="https://toot.community/tags/PhotoMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PhotoMonday</span></a> </p><p><a href="https://toot.community/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a> (salt is a mineral, yall)</p><p><a href="https://toot.community/tags/landscape" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>landscape</span></a></p>
bse<p>Kolwezite, CuCo(CO3)(OH)2, Dark green layer on pink cobalt-bearing carbonates. ca 10 cm across.<br>Musonoi, Lualaba, RD Congo. RGM 17136. Royal Museum of Central Africa, <a href="https://toad.social/tags/Belgium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Belgium</span></a> <a href="https://toad.social/tags/MineralMonday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MineralMonday</span></a></p>
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