Facts
- Country
- Norway
- Minerals
- 2
- Species citing it (Wikidata)
- 1
- First described here
- Hundholmenite-(Y), Perbøeite-(Ce)
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3143297
Minerals first described here · 2
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Hundholmenite-(Y) | (Y,REE,Ca,Na)₁₅(Al,Fe³⁺)(CaxAs³⁺₁-x)(Si,As₅+)Si₆B₃(O,F)₄₈ | Trigonal | — | — |
| Perbøeite-(Ce) | — | Monoclinic | — | — |
Minerals · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Hundholmenite-(Y) | (Y,REE,Ca,Na)₁₅(Al,Fe³⁺)(CaxAs³⁺₁-x)(Si,As₅+)Si₆B₃(O,F)₄₈ | Trigonal | — | — |