Mcguinnessite (rare carbonate & RARE locale)

Item Description

Mcguinnessite is a rare anhydrous Mg-Cu carbonate and specimens from this obscure Nevada district are RARE. Vivid two-toned teal-blue botryoids and crusts richly course across the starkly contrating large matrix on this very rare, rich and excellent large exampe from an East Coast collection. Comes with a label from respected rarities dealer, Excalibur-Cureton Company. From an East Coast collection. A MUST for the locality or species collector.