Mercedes Calcite (Chalcopyrite on Calcite) - Specimen rare mineral from congo star-like cluster

star-like cluster

giving it the appearance of ancient charred timber

it has strong visual depth

it is a form of microcrystalline quartz rather than a separate mineral species

smaller supporting growth

Mercedes Calcite (Chalcopyrite on Calcite) - Specimen rare mineral from congo star-like clusterMined from: Daye Mine, Huangshi, Hubei Province, China Description: This one of a kind Mercedes Calcite with Chalcopyrite mineral specimen from Hubei, China features a large, well formed translucent calcite crystal rising from a richly textured matrix of dark bronze brown chalcopyrite. The main calcite crystal shows pale smoky champagne tones with clean geometric faces, visible internal growth lines, and distinctive dark linear markings running across