Cobaltkoritnigite (rare arsenate) Vajdak Coll.

Item Description

Cobaltkoritnigite is a rare hydrated arsenate. Vivid pink radial aggregates of tiny acicular crystals richly cover both sides of the sculptural matrix on this colorful, rich and rare example from this ancient locale. Choice, very rich material from the Josef Vajdak Collection, a noted Czech specialist. ERD and EDX analysed by Dr. Jan Hlousek, Jachymov.