Detailed information
Species
Pharmacosiderite
Dimensions
51 x 33 x 26
mm
Locality
Wheal Gorland St. Day United Mines, Gwennap Cornwall, England
Condition
No recorded repairs
Pharmacosiderite, a hydrated basic ferric arsenate, forms splendidly coloured deep lush leaf green cubic crystals lining a shallow open vug in a limonitic gossan matrix. The crystals average 1 to 1.5 mm on edge and are intergrown each other and partly surrounded with drusy tan and jet-black micro-crystalline unidentified species. A great miniature Pharmacosiderite from Wheal Gorland.
