Roquesite, Bornite, Chalcopyrite, Hematite
Charrier Mine, Laprugne, Vichy, Allier, Auvergne-Rhône-Alpes, France
Detail from a roquesite-bearing copper ore from the type locality. Drop-shaped roquesite crystal (bluish-grey) in association with bornite (tombac brown), chalcopyrite (pale yellow), skeletal hematite (pale-blue), and silicate matrix (dark-grey to black). Vertically reflected plane polarized light digital image in air, width 0.2 mm.
G. ...
© Günter Grundmann, Detmold.