Pharmacosidérite, Carminite et Arsénosidérite

Pharmacosiderite, Carminite, Arsenosiderite, Mines de L'Orb, Ceilhes, Hérault, France. Specimen 6x3.5x2cm, in fact a mixture of five iron minerals. Pharmacosiderite, a hydroxy arsenate of iron and potassium, carminite, a hydroxy arsenate of iron and lead; arsenosiderite, a hydroxy arsenate of iron and calcium; mispickel or arsenopyrite, a sulphide of arsenic and iron; and pyrite, a sulphide of iron. Handwritten label from the Chervet collection