There’s a geology quiz up at Eunoia. Identifying rocks from photos is a pain in the arse, but really, who can resist a good challenge?
If you can’t, head on over and give it a whirl.
Geology Quiz
En Tequila Es Verdad
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There’s a geology quiz up at Eunoia. Identifying rocks from photos is a pain in the arse, but really, who can resist a good challenge?
If you can’t, head on over and give it a whirl.
En Tequila Es Verdad 
Pretty confident about 1: black shale w/pyrite, and 3,4,5 look like various forms of calcite crystals. Not sure about 2- maybe Cu minerals? or 6- possible limestone or similar.
Pretty confident about 1: black shale w/pyrite, and 3,4,5 look like various forms of calcite crystals. Not sure about 2- maybe Cu minerals? or 6- possible limestone or similar.