Uploaded May 2019 | Updated September 2026, 3 minutes ago

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Native Copper with
Calcite & Copper inclusions on matrixthat
weighs 32 grams. size: 6.8 x 6.0 x 4.8 cm

From the Defunct Minesota Copper Mine in Rockland, Michigan.
The Minesota Mine is in the Upper Peninsula of Michigan in Ontonagon County
The Minesota (the single "n" in the name was a mistake in the
original incorporation papers) was one of the most productive
and famous early mines in the Michigan Copper Country.