Volborthite - Milpillas Mine, Mexico - 4.5 x 3.5 x 2 cm / main crystal: 2 cm.

Mineral: Volborthite
Locality: Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora, Mexico
Dimensions: 4.5 x 3.5 x 2 cm / main crystal: 2 cm.

Description: Mass: 24 g MIM number: 1485 Very smooth and lustrous dark green crystals, some in a V-shape (probably twinned crystals), intact and on a little bit of gray matrix Photographer: FMI / James Elliott; Publication: "Mineralogical Record, Sep-Oct 2021"