Cabinet, 11.9 x 7.4 x 4.0 cm
Alcaparrosa Mine, Cerritos Bayos, Calama, El Loa Province, Antofagasta Region, Chile
Ex. Philadelphia Academy of Natural Sciences
Super-sharp, lustrous, mica-like crystals of copiapite in unusually big sizes to 8mm, richly decorate this large matrix specimen. It can perhaps be broken into several pieces, each equally good and rich for the species. I have not often seen such nice, isolated crystals. The piece is just plain attractive on its own merits, but is also significant, I think.