Copper World

Middlebackite

IMA formula: Cu2C2O4(OH)2

Crystallography: Monoclinic. P21/c. a = 7.2597(15), b = 5.7145(11), c = 5.6624(11) Å, β = 104.20(3)°. Z = 2.

Specimen #9. Middlebackite. Val Gardena Sandstone exposure, San Lugano pass, Carano, Ville di Fiemme, Trento Province, Trentino-Alto Adige (Trentino-South Tyrol), Italy. FOV 4.1 mm.