Copper ps. After Cuprite (rare Bisbee) Urish Coll.

Item Description

A rare and desirable old-time pseudomorph thumbnail from the famous Cole Shaft at Bisbee and the Harold Urish Collection. Two copper pseudomorphs after sharp cubic cuprite crystals are jauntinly perched atop the sculptural and rare matrix. The large cube is 6 mm. The boxwork goehite matrix is lined with lustrous, small dark gray botryoids of either psilomelane (an obsolete group name for hard black manganese oxides) or hetaerolite (a rare zinc, manganese oxide). Both are rare in specimens from Bisbee. See the copper pseudo cuprite photo on P. 296 of the 1981 Mineralogical Record Bisbee Special Issue. A MUST for the locality or species collector.