Facts
- Chemical formula
- Pb₄(Al₃Cu)(Si₄O₁₂)(S₀.₅Si₀.₅O₄)(OH)₇Cl(H₂O)₃
- Crystal system
- Orthorhombic
- Number of elements
- 8
- IMA status
- Approved
- Type locality
- Mammoth-Saint Anthony mine
- Named after
- Robert O. Meyer
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19810681