Facts
- Country
- United Kingdom
- Minerals
- 4
- Species citing it (Wikidata)
- 3
- First described here
- Banalsite, Bannisterite, Cymrite and others
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q28730345
Minerals first described here · 4
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Banalsite | Na₂BaAl₄Si₄O₁₆ | Orthorhombic | — | 2.95 g/cm³ |
| Bannisterite | (Ca,K,Na)(Mn²⁺,Fe²⁺)₁₀(Si,Al)₁₆O₃₈(OH)₈ * nH₂O | — | 4.0 | — |
| Cymrite | BaAl₂Si₂(O,OH)₈ * H₂O | Monoclinic | — | — |
| Pennantite | Mn²⁺₅Al(AlSi₃O₁₀)(OH)₈ | Monoclinic | — | — |