510-9ldocinr ((COPPER on PREHNITE)), $25 MINIMUM BID, Cliff Mine, Keweenaw County, Michigan, 5 x 3.5 x 1.5 cm, Miniature | |
8 to 10 small dodecahedral Copper crystals on a pastel green botryoidal Prehnite from the Cliff Mine. ex Carl Bentley collection. |