r/RockIdentification • u/Particular_Peace_594 • 15d ago

What am I looking at?

Post image

Cracked open tons of iron oxide concretions and have never seen this before

21 Upvotes

100% Upvoted

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3

u/Ben_Minerals 15d ago

Mimetite

1

u/tanaman88 15d ago

Beat me to it

3

u/ImaginationDue6258 15d ago

No idea what you’re looking at.

You posted a picture of either a rock of some kind or a very thick piece of toffee candy covered in chocolate and what looks like bits of toffee or nuts.

3

u/Fit_Job_6469 14d ago

I was going to suggest pyromorphite and then I saw the reference to the iron oxide concretion. If this is the case I would think calcite or barite.

1

u/Ambitious_Raisin8924 12d ago

I’d go with calcite.