Percylite (rare) w/ Gold (Columbia Univ.-AMNH Coll.)

Item Description

Percylite is a rare mixture of boleite and pseudoboleite. It is not recognized as a species. That being said, this is a rare and rich specimen of powder-blue percylite and an unknown green copper chloride with visible specs of gold from this well-known district in Chile. Ex Columbia University-American Museum and Eugene Carmichael Collections.