Mercedes Calcite (Chalcopyrite on Calcite) - Specimen fossil bowl became extinct at the end

became extinct at the end of the Cretaceous period

even when finer surface detail has softened with time

Description: This one of a kind dinosaur bone fragment from Utah has a polished face with deep black

Scapolite assists with bone disorders

Mercedes Calcite (Chalcopyrite on Calcite) - Specimen fossil bowl became extinct at the endMined from: Daye Mine, Huangshi, Hubei Province, China Description: This one of a kind Mercedes Calcite specimen from Hubei Province, China features a large intergrown group of clear to pale honey coloured calcite crystals with broad, strongly striated faces. Distinct black mineral bands run in straight, parallel lines across several crystal surfaces, standing out sharply against the translucent calcite. The piece has a thick, blocky form with stepped