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cobalt · @cobalt
1319 followers · 4815 posts · Server awscommunity.social
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For my first recommendation to vote and for my favorite of all crystals, this is stibnite. It is a great specimen offered by a dealer in the TEP venue of the Tucson Rock and Gem Show this year. The entire piece is about 2 1/2" x 2". The blade formations stacked upon each other make for a natural composition in this macro view. The crystal is so dark, the "steel blue" shows as black and gray with flashes of blue as light hits it. My photos 2008.

#mincup23 #stibnite #geology #mineralogy

Last updated 1 year ago
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Bill Minarik · @silicatefondue
208 followers · 566 posts · Server fosstodon.org
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One more resource before voting starts: during the pandemic we discovered the alexstrekeisen.it/ site run by Alessandro Da Mommio (in Italian and English). It's chock-full of sample and thin section photos, well organized.

Blue is well represented: here a reaction texture between sillimanite and cordierite, in thin section.

#mincup23 #sapphirine #mineralogy #thinsection #photography

Last updated 1 year ago
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Bill Minarik · @silicatefondue
204 followers · 549 posts · Server fosstodon.org
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has a complicated structure, with Mg in two sites and Al both four-fold and six-fold coordinated. It has only about 15 wt% SiO2.

It has monoclinic symmetry, but still can form attractive crystal faces when it can grow unimpeded. A good example is on the cover of Dexter Perkin’s on-line mineralogy text, found at:
opengeology.org/Mineralogy/

In polarized light, sapphirine changes color with orientation (called pleochroism).

#sapphirine #mincup23 #minerals #mineralogy #thinsection

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bse · @doktrock
370 followers · 3034 posts · Server toad.social

#mineralogy

Last updated 1 year ago
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Patleguen7 · @patleguen7
175 followers · 371 posts · Server mamot.fr
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Does anyone have an idea of what is that strange piece of rock, founded in the garrigues north of Montpellier. There the rocks are mostly limestone, and that one is the only one I founded.


#geologyrocks #jadeite #mineralogy #minerals

Last updated 1 year ago
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History_of_Geology · @History_of_Geology
794 followers · 812 posts · Server mstdn.social
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July 25, 1920, birthday of Rosalind Franklin. She used X-ray crystallography to study the structure of DNA & , fighting deadly diseases 🧬 Her research on coal lead to the development of carbon-fiber-reinforced materials 💎

nature.com/articles/d41586-020

#mineralogy #viruses

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Steven Saus [he/him] · @StevenSaus
479 followers · 8977 posts · Server faithcollapsing.com
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From 12 Jul: Has the century-old mystery of Antarctica’s “Blood Falls” finally been solved? - Enlarge / Blood Falls seeps from the end of the Taylor Glacier into Lake Bonney. Scientist... arstechnica.com/science/2023/0 -falls -science

#science #mineralogy #materials #geology #geochemistry #chemistry #blood #astrobiology #antarctica

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Danielle Rose · @manyfaceted
194 followers · 41 posts · Server mstdn.social
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Happy Moon Landing Day!!! The Apollo program and Moon exploration has been a life-long obsession of mine. I’m so excited for our return on Artemis 2 and 3!

@nasa

#rocketsmakemehappy #rockets #NASA #crewedspaceflight #spaceflight #Apolloprogram #nasamoonsnap #watercolours #watercolorart #AstroArt #sciart #spaceartist #spaceart #mineralogy #lunar #craters #moon #moonlanding #apollo11 #apollo #WaterColor

Last updated 1 year ago
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Nadine, Hunter of Rocks 💎 · @NadWGab
532 followers · 44 posts · Server mas.to
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Plane polarised light vs cross polarised light

#mineralogy #minerals #geology #thinsectionthursday

Last updated 1 year ago
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Catherine Berry · @isomeme
309 followers · 1394 posts · Server mastodon.sdf.org
Trinitite - Wikipedia

Happy 78th anniversary of the day when humanity created a new mineral, forged in atomic fire. It is something of a miracle that we have survived for nearly a century with this power in our hands. We are barely-domesticated apes, but we wield the weapons of angry gods.

en.wikipedia.org/wiki/Trinitit

#history #mineralogy

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IT News · @itnewsbot
3485 followers · 266432 posts · Server schleuss.online

Has the century-old mystery of Antarctica’s “Blood Falls” finally been solved? - Enlarge / Blood Falls seeps from the end of the Taylor Glacier into Lak... - arstechnica.com/?p=1952810

#geology #science #chemistry #mineralogy #bloodfalls #antarctica #geochemistry #astrobiology #materialsscience

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Tech news from Canada · @TechNews
818 followers · 22026 posts · Server mastodon.roitsystems.ca

Ars Technica: Has the century-old mystery of Antarctica’s “Blood Falls” finally been solved? arstechnica.com/?p=1952810

#Tech #arstechnica #it #technology #MaterialsScience #astrobiology #geochemistry #antarctica #bloodfalls #mineralogy #chemistry #science #geology

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STOE · @STOE_News
23 followers · 14 posts · Server mstdn.science
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The @nhm_london just installed a cutting-edge and an Oxford Cryosystems . With this diffractometer Dr Jens Najorka and Museum researchers investigate a variety of materials including meteorites, ores, biominerals and minerals new to science. Exciting science awaits!

#stoe #stadimp #cryostream1000 #xrd #spacescience #spaceresearch #mineralogy #NaturalHistoryMuseum #xray #characterisation #materialscience #astroid #meteroites #comets #diffraction #Science #research #greeneconomy #planets

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ErrantScience · @errantscience
1466 followers · 263 posts · Server mas.to
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Ever wondered what it's like working in the field of Mineralogy? Here's a handy one-panel guide to give you some idea ⁠ ⁠ ⁠ ⁠ ⁠

#errantscience #research #science #academia #instacartoon #instacomic #comics #comic #cartoons #cartoon #geology #mineralogy

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History_of_Geology · @History_of_Geology
679 followers · 643 posts · Server mstdn.social
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May 24, 1794, birthday of philosopher and historian of science William Whewell, coined many concepts in - like catastrophism & uniformitarianism - and was especially interested in - Whewellite was named in his honor 💎

tinyurl.com/yxmoyfns

#mineralogy #geology

Last updated 1 year ago
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Preston MacDougall · @ChemicalEyeGuy
249 followers · 7156 posts · Server mstdn.science

Today’s on @Wikipedia is a gorgeous crystal of vanadinite! 👉 en.m.wikipedia.org/wiki/Vanadi

#featuredpicture #mineralogy #chemistry #chemiverse #mastochem

Last updated 1 year ago
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Groove, M.D. · @groovemd
231 followers · 2376 posts · Server 19marbles.org
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I put a chunk of vivid green andalusite in the coals from a typical campfire. Left it there overnight. Emerged almost jet black: a very dark, dense green in strong sunlight. This is its color from now on, apparently baked through. Any or want to tell me what my campfire can do overnight that the pressure and heat of mama Earth over millions of years didn't?

#geology #mineralogy #nerds

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Danielle Rose · @manyfaceted
131 followers · 191 posts · Server mastodon.art
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Finished! MINERAL MOON, 8x8”, watercolor on cotton. An enhanced color view of Sinus Iridum (Bay of Rainbows) and Mare Imbrium (Sea of Showers), showing the iron-rich (mafic) basalts in blues, with the iron-poor (felsic) rocks in oranges and browns.


#artistatwork #artistsofmastodon #artmatters #ayearforart #buyintoart #fediart #mastoartists #MastoArt #watercolours #watercolorart #astroart #sciart #spaceartist #spaceart #planetaryscience #mineralogy #lunar #craters #moon #watercolor

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C. Pimentel :tardis: · @doclomieu
223 followers · 1761 posts · Server fediscience.org

#astrobiology #crystallography #mineralogy #computationalchemistry

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IT News · @itnewsbot
3127 followers · 257011 posts · Server schleuss.online

Archaeologists are unlocking the secrets of Maya lime plasters and mortars - Enlarge / Archaeologists analyzed samples of Maya plasters collected fr... - arstechnica.com/?p=1932932 &culture

#science #chemistry #mineralogy #biomimetics #archaeology #mayanculture #gaming #materialsscience

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