#corundum — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #corundum, aggregated by home.social.
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#arsenuranospathite just because it's neat that so many minerals got together and made this! Even if y'know most of them are danger minerals... that's just more fun. Right?
(Like don't get me wrong, #corundum is neat too. I even own some. But 🤷🏻.)
(Idk what my voting criteria is this year. 🤣) #MinCup24
via @MineralCup
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#MinCup24 ROUND 1 MATCH 2: #Arsenuranospathite vs #Corundum
It's a tough choice, arsenuranospathite's elemental cocktail or corundum's sparkling gem qualities paired with high Mohs hardness? Campaign, learn, share, & VOTE!
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CW: Actor death mention, slight irreverence?
Consider voting for #Corundum in honour of the loss of David McCallum from #SapphireAndSteel. Or for Joanna Lumley, whatever works for you. 😽 (Stibnite is currently scandalously in the lead by 27 votes. Shenanigans wrong with the world!)
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Some #corundum on Earth is older than our solar-system; these pre-solar grains are found in some chondritic meteorites. Oxygen isotopes reveal that they formed in the puffed-off atmospheres of old red-giant stars. From Frisch et al. 2005.
#MinCup23 #Cosmochemistry #Meteorites -
Sapphirine's type locality is in western Greenland, south of Nuuk, which is where the mineral was discovered in 1809 by Karl Giesecke.
It was named due to its blue color being similar to sapphire, a different, associated mineral (#corundum, aluminum oxide).
An amazing amount of information can be found about #sapphirine at MinDat:
https://www.mindat.org/min-3531.html
a non-profit mineral data base founded in 2000 by Jolyon Ralph (who is on Mastodon at @jolyon). -
Sapphirine's type locality is in western Greenland, south of Nuuk, which is where the mineral was discovered in 1809 by Karl Giesecke.
It was named due to its blue color being similar to sapphire, a different, associated mineral (#corundum, aluminum oxide).
An amazing amount of information can be found about #sapphirine at MinDat:
https://www.mindat.org/min-3531.html
a non-profit mineral data base founded in 2000 by Jolyon Ralph (who is on Mastodon at @jolyon). -
Sapphirine's type locality is in western Greenland, south of Nuuk, which is where the mineral was discovered in 1809 by Karl Giesecke.
It was named due to its blue color being similar to sapphire, a different, associated mineral (#corundum, aluminum oxide).
An amazing amount of information can be found about #sapphirine at MinDat:
https://www.mindat.org/min-3531.html
a non-profit mineral data base founded in 2000 by Jolyon Ralph (who is on Mastodon at @jolyon). -
Sapphirine's type locality is in western Greenland, south of Nuuk, which is where the mineral was discovered in 1809 by Karl Giesecke.
It was named due to its blue color being similar to sapphire, a different, associated mineral (#corundum, aluminum oxide).
An amazing amount of information can be found about #sapphirine at MinDat:
https://www.mindat.org/min-3531.html
a non-profit mineral data base founded in 2000 by Jolyon Ralph (who is on Mastodon at @jolyon). -
Another artfight drawing! this time for @Kyrso ! (Kirsow on artfight), As always, pretty fun to draw dragons and scaly creatures and this was no exception! I hope they like it
#dragon #scales #scaly #lizard #ice #crystal #crystals #Crystalizen #corundum #sapphire #rpg #fantasy #horns #wings #mountain #digital #illustration #colored #artfight #artfight2023 #teamvampires #krita #wacom #furry #furryart #furryartist #sfw #sfwart #sfwfurry #sfwfurry #sfwfurry #scalie
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A Quick And Easy Recipe For Synthetic Rubies - With what it takes to make synthetic diamonds – the crushing pressures, the searing temperatures –... more: https://hackaday.com/2020/03/06/a-quick-and-easy-recipe-for-synthetic-rubies/ #chemistryhacks #aluminumoxide #chromiumoxide #mischacks #arcwelder #corundum #crucible #graphite #ruby