Facts
- Chemical formula
- Pb₂(Si₄Al)O₁₁(OH)
- Crystal system
- Monoclinic
- Number of elements
- 5
- IMA status
- Approved
- Type locality
- Big Horn Mountains
- Named after
- Ronald Bradford Gibbs
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19861238