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Monoclinic Gallery

Available as Prints and Gift Items

Choose from 2 pictures in our Monoclinic collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Chalcocite with Quartz, Cooks Kitchen Mine, Illogan, Cornwall, England
Chalcocite with Quartz, Cooks Kitchen Mine, Illogan, Cornwall, England
Full Range of Prints and Gifts in Stock
Chalcocite with Chalcopyrite, Tincroft Mine, Illogan, Cornwall, England
Chalcocite with Chalcopyrite, Tincroft Mine, Illogan, Cornwall, England
Full Range of Prints and Gifts in Stock
Chalcocite with Chalcopyrite, Tincroft Mine, Illogan, Cornwall, England Featured Print

Chalcocite with Chalcopyrite, Tincroft Mine, Illogan, Cornwall, England

Steel coloured crystals of chalcocite covering chalcopyrite. This botryoidal variety of chalcopyrite is known as blister copper. The specimen was drawn for Specimens of British Minerals, Selected from the Cabinet of Philip Rashleigh (1797, Volume 1, Plate 9, Figure 4) which states Is yellow mammillary copper ore, covered with a thin coat of a bluish-green colour, with crystals of steel-coloured copper ore, composed of prisms having six sides, and truncated ends, formed upon the mammillary copper ore. d One of the steel-coloured crystals magnified. From Tincroft'. Chalcocite is a secondary mineral occurring in or near the oxidised zone of copper sulfide deposits. Rashleigh Collection

© RIC, photographer A.G. Tindle