Chenevixite

Formula: Cu2Fe3+2(AsO4)2(OH)4

Colour: Olive green, yellow-green, dark green.

Hardness: 3½ – 4½

Specific Gravity: 4.38

Crystal System: Monoclinic

Name: Named after Richard Chenevix (ca. 1774 – 1830), chemist and playwright. He analyzed of an arsenate of copper and iron from Cornwall in 1801 that was later shown to be chenevixite.

Type Locality: Wheal Gorland, St Day, Cornwall – England, UK

The Fe3+ analogue of Luetheite. Chenevixite-Luetheite Series. A relatively rare, but generally inconspicuous secondary mineral in oxidized zones of some hydrothermal, polymetallic ore deposits.