Cool Rocks

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A place for:

Sharing cool rocks you found
Discussing cool rocks
Memeing about rocks
Sharing rock facts
Cool rocks

Minerals are cool, too.

Be gneiss to each other.

Please use posts for your rocks. Feel free to add more pictures and links to articles in the post text.

founded 7 months ago

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Wren@lemmy.today

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Unknown rock I found (lemmy.nz)

submitted 6 months ago by WhyIHateTheInternet@lemmy.world to c/cool_rocks@lemmy.today

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Don't remember where I found it but it's cool!

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[–] Cuzscience@lemmy.world 8 points 6 months ago* (last edited 6 months ago) (1 children)

I had a mineralogy professor that was notorious for giving lab practicals that would consist of wonky specimens of similar/exact same colors. So ID from physical appearance was not a good option. You had to rely on all the other properties for identification.

[–] Endymion_Mallorn@kbin.melroy.org 3 points 6 months ago

Yeah, it's always best to examine a sample in all the ways you can. Especially radioactivity.