Michigan Upper Penninsula native copper crystal

rockhardminerals (43)in #geology • 7 years ago

Michigan’s Upper Penninsula has the purest copper deposit in the world. In many cases it’s 100% pure native.

The mid continental rift event which occured over 1 billion years ago brought copper to the surface.

This crystal was freed from calcite and matrix using muriatic acid.

#mineral #science #photography #nature

7 years ago in #geology by rockhardminerals (43)

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steinreich (60) 7 years ago

Gediegen Kupfer fehlt mir noch in meiner Sammlung 👍

mountainwashere (65) 7 years ago

Oooh, lovely!

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rockhardminerals (43) 7 years ago

Thanks! I can find pounds metal detecting at the abandoned mines.

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keephy (56) 7 years ago (edited)

Nice! I've always wanted to visit the UP of Michigan. It's seems like it would be fascinating place geologically and culturally speaking. I write about geological topics as well! I'll give you a follow! :)

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