'Cuprum sulphuratum' Size:XS: 40 x 30cm 11th November 1974

11th November 1974

Photographed in a garden

View with figures strolling around the reservoir and a dog in the reservoir retrieving a stick

Specimen termed 'Arseniate of copper' with two details of crystals

26 October 1965

'Cuprum sulphuratum' Size:XS: 40 x 30cm 11th November 1974Specimens of copper sulphate, here termed 'sulphuret of copper', with a figure showing its crystalline form. Plate 77 from British mineralogy: or coloured figures intended to elucidate the mineralogy of Great Britain, by James Sowerby, volume 1 (London, R. Taylor & Co., 1804). The accompanying text states that 'This copper ore is not uncommon; but the form of the crystallization in this specimen is either rare, or has been hitherto overlooked