Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $75.00
- Locality
- San Miguel mine, Moctezuma, Sonora, Mexico
- Formula
- (Cu,Fe,Ag)9Se8
- Size
- 2.3 x 2 x 1.4 cm - Thumbnail
- Tagged
- copper, selenium, silver
Silvery crystal grains to 0.5mm and in aggregates to around 2mm. The Geffroyite is scattered throughout the matrix not just the arrowed areas.
