Copper World

Dolerophanite

IMA formula: Cu2O(SO4)

Crystallography: Monoclinic. C2/m. a = 9.3636(5) Å, b = 6.3219(3) Å, c = 7.6305(4) Å, β = 122.326(2)°. Z = 4.

Specimen #238. Dolerophanite (brown) and euchlorine (green). Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia. FOV 4.9 mm.