As recorded:
Quincy mine, Houghton Co., Michigan, USA
Mindat locality:
50mm x 45mm x 20mm
Classic upper Michigan specimen with lustrous gem crystals of scalenohedral calcite to 1.3 cm in size on matrix. Some show inclusions of native copper. Some cleaving along the left side of the piece, the prominent crystals are in very good condition.
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10,443,198 minIDs have been issued as of 24th Apr 2024 10:23 am UTC