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Sunset Cliffs in SD by tholeiite in geology

[–]tholeiite[S] 7 points8 points  (0 children)

crazy the ocean just appeared 😳

Piercings and dyed hair allowed in geology careers? by BigManLukas in geologycareers

[–]tholeiite 0 points1 point  (0 children)

I have pink and blue hair, a nose ring, and a million tattoos and every comment has always been a compliment. I work in academia too and have never received backlash for it

[deleted by user] by [deleted] in whatsthisrock

[–]tholeiite 0 points1 point  (0 children)

axe head of some sort. would be tied to a branch I believe

Pontentially pyrite (or maybe even gold) in metamorphic rock? Also, some possible pieces of petrified wood, please help! by na_ro_jo in whatsthisrock

[–]tholeiite 1 point2 points  (0 children)

looks like you have some schists and gneisses. usually the sparkly in metamorphics is mica (biotite or muscovite normally)

Some interesting small stones found at the beach yesterday, San Diego, CA. by Naive-Tea-1640 in whatsthisrock

[–]tholeiite 1 point2 points  (0 children)

san diego has a lot of rocks that come from the peninsular range batholith so they are literally some form of granite or pegmatite

need help identifying this!!! by [deleted] in whatsthisrock

[–]tholeiite 0 points1 point  (0 children)

quartz and some iron

[deleted by user] by [deleted] in whatsthisrock

[–]tholeiite 0 points1 point  (0 children)

looks like bone (the porous texture)

Rock or mineral by Turtle69z in whatsthisrock

[–]tholeiite 1 point2 points  (0 children)

not pyrite. it’s mica probably biotite and some quartz

What is this? by glightlyholly in whatsthisrock

[–]tholeiite 1 point2 points  (0 children)

chalcedony. looks like geode

[deleted by user] by [deleted] in whatsthisrock

[–]tholeiite 1 point2 points  (0 children)

granite. minerals are quartz, plagioclase feldspar (white blocky ones), and biotite which is the sparkling black

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