13bttjnr ((HETEROGENITE, CHRYSOCOLLA)), $20 MINIMUM BID, Star of the Congo Mine, Katanga Copper Cresent, Katanga, Republic of Congo, 10 x 8 x 1.5 cm, Cabinet | |
Heterogenite is a Cobalt Hydroxide. Black botryoidal lustrous Heterogenite on dark turquoise blue Chrysocolla. This looks like a floater with the botryoidal Heterogenite crystallized around the edges of the specimen. |