EM37AA1
: Copper with Calcite - Lake Superior, Michigan
USA
Copper with Calcite
Lake Superior, Keweenaw County, Michigan
USA
Specimen size: 16 × 6.5 × 1.5 cm = 6.3” × 2.6” × 0.6”
Main crystal size: 5.5 × 2.2 cm = 2.2” × 0.9”
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