Mineral: Chalcomenite
Locality: Majuba Hill Mine, Antelope District, Pershing County, Nevada, USA
Dimensions: 28 x 19 x 10 mm

Description: Glassy blue aggregates of chalcomenite in a dark grey matrix containing chrysocolla, quartz grains and muscovite (variety sericite). Specimen collected by J.F. Parnau on the middle adit dump.

All pictures, text, design © Forum FMF 2006-2025