Baryte, origin unknown.

Baryte, origin unknown.

Baryte is barium sulphate,  BaSO4   baryte crystals can be of several different forms, tabular, massive, nodular, fibrous, or radiating. I am not keen on collecting specimens from unknown locations, but this specimen was a gift, and is included in my collection as a "type specimen", The platey crystals are a dirty grey colour, and there is a sprinkling of small chalcopyrite crystals, and two or three quartz crystals in the crevices.