EC86P2: Copper with Calcite - Lake Superior, Michigan USA
Copper with Calcite

Lake Superior, Keweenaw County, Michigan  USA

Specimen size: 6.9 × 3.8 × 3.4 cm = 2.72” × 1.50” × 1.34”
Main crystal size: 2.9 × 2 cm = 1.14” × 0.79”

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