Copper in Calcite, Lake Superior Copper District, Keweenaw, Michigan, ex. Louis Lafayette Collection, Miniature 1.8 x 2.0 x 2.9 cm, $125. Online 9/22.
NSMW13235
Glassy lustered calcite crystal with bright native copper inclusions. Nice showy miniature from the Cranbrook Institute of Science #270-442. In excellent condition.