Mercedes Calcite (Chalcopyrite on Calcite) - Specimen predator one of its classic localities

one of its classic localities

Approximate Weight of 1 Piece: 590g

Although it is not especially hard

The Morrison Formation is a a Late Jurassic rock unit famous for dinosaur fossils across the western United States

Chemical Composition: Ca2B5SiO9(OH)5

Mercedes Calcite (Chalcopyrite on Calcite) - Specimen predator one of its classic localitiesMined 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