Calcite over Conichalcite var. Barthite from Mina Ojuela, Mapimi, Durango, Mexico
from Mina Ojuela, Mapimi, Durango, Mexico
Excellent specimen of a transparent calcite overgrowth on electric green conichalcite variety barthite crystals in spherical botryoidal aggregates on gossan matrix. There are 2 isolated clusters of tabular calcite crystals. The calcite overgrown shows well defined scalenohedral faces.
417 grams, 3.75 x 2 x 3.5 inches