Iridescent Copper Sulphide on Matrix - 514g Great Rock Mine Stone: Probable Calcite

Stone: Probable Calcite

Weight: 493g

Mineral: Indigo Gabbro (mystic Merlinite) — 123 Mm

Polished angel carving in soft white translucency and satin-like fibrous sheen

North Wales with recorded size

Iridescent Copper Sulphide on Matrix - 514g Great Rock Mine Stone: Probable CalciteA chunky iridescent copper sulphide specimen on matrix, with grey host rock and cavities carrying vivid electric blue metallic flashes across small crystalline surfaces. The appearance is closest to a chalcopyrite bornite type piece, often searched as peacock ore, but no original label was present with the photographed batch so it is not being sold as a confirmed rare blue copper species. Exact specimen shown in the photos. The piece in the photos is