/r/whatsthisrock

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What is this prehistoric protein ball?

1 upvotes • Periodic_Aerospace

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This black mineral that shines with multiple colors, on a rock that also contains pyrite, some blueish black powdery mineral and anhidrite/gypsum

1 upvotes • Background-Profit568

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Help identifying!

1 upvotes • TheEverydayTechR

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Concretion?

1 upvotes • Sea_Tank_9448

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Found at Lake Cushman in WA!

1 upvotes • tokingtogepi

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Found on beach in New Jersey - Need help identifying!

1 upvotes • [deleted]

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Found on beach in New Jersey - Strange texture! What could it be?

1 upvotes • Mala_hy

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Found on beach in New Jersey - What could it be?

1 upvotes • Mala_hy

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Saw some shiny copper inclusions shining back at me during a back-yard project. Curious what it is!

1 upvotes • BananaLengths4578

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Found on beach in New Jersey - Strange texture! What could it be?

1 upvotes • Mala_hy

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
What is this prehistoric protein ball?	1	Periodic_Aerospace
This black mineral that shines with multiple colors, on a rock that also contains pyrite, some blueish black powdery mineral and anhidrite/gypsum	1	Background-Profit568
Help identifying!	1	TheEverydayTechR
Concretion?	1	Sea_Tank_9448
Found at Lake Cushman in WA!	1	tokingtogepi
Found on beach in New Jersey - Need help identifying!	1	[deleted]
Found on beach in New Jersey - Strange texture! What could it be?	1	Mala_hy
Found on beach in New Jersey - What could it be?	1	Mala_hy
Saw some shiny copper inclusions shining back at me during a back-yard project. Curious what it is!	1	BananaLengths4578
Found on beach in New Jersey - Strange texture! What could it be?	1	Mala_hy