Facts
- Chemical formula
- ZnMn⁴⁺₃O₇·3H₂O
- Crystal system
- Trigonal
- Mohs hardness
- 2.5
- Number of elements
- 4
- IMA status
- Grandfathered
- Type locality
- Sterling Hill
- Named after
- visual appearance
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q617097