Facts
- Chemical formula
- Mn₁₉Zn₃(AsO₄)₃(AsO₃)(SiO₄)₃(OH)₂₁
- Number of elements
- 6
- IMA status
- Grandfathered
- Type locality
- Sterling Hill
- Named after
- James J. McGovern
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3853401
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3853401