Facts
- Chemical formula
- Ag₈(As³⁺₀.₅As⁵⁺₀.₅)S₆
- Crystal system
- Orthorhombic
- Number of elements
- 3
- IMA status
- Approved
- Type locality
- Uchucchacua
- Named after
- Paul Spry
- Colour
- black
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q24255283