Cuprum oxygenizatum Finish:Stretched 1735 (1779)

1735 (1779)

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Cuprum oxygenizatum Finish:Stretched 1735 (1779)Specimens of octahedral cuprite crystals, here termed 'crystallized red oxide of copper'. Plate 53 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 'Some of the crystallized red oxides of copper deserve from their lustre the appellation of Ruby Coppers The present fin specimen has more of the steel like