Facts
- Chemical formula
- (Y,REE,Ca,Na)₁₅(Al,Fe³⁺)(CaxAs³⁺₁-x)(Si,As₅+)Si₆B₃(O,F)₄₈
- Crystal system
- Trigonal
- Elements in formula
- Yttrium, Calcium, Sodium, Aluminium, Iron, Arsenic, Silicon, Boron, Oxygen, Fluorine
- Number of elements
- 10
- IMA status
- Approved
- Type locality
- Hundholmen, Tysfjord
- Named after
- Hundholmen, Tysfjord
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q17448983