Dims: 1.73x1.59x0.67" (4.40x4.03x1.70cm)
Wt: 0.88oz (24.8g)
Fagottiville, Michigan, USA
This is a somewhat oddly shaped specimen of natural copper form the upper peninsula of Michigan. It looks like a dish antennae perched on a rock. It is accompanied by several other minerals, largely the white limestone host rock that has been largely etched away to reveal the copper, plus an unidentified sparkly green mineral (I thought it was green corrosion until I examined it with a loupe - it is clear, transparent, green, and vitreous, but I cannot identify it), plus some blue that looks like chrysocola. The specimen has many sharp edges and crystalline indications, although I suspect that these are imprint faces from the host calcite.