Facts
- Chemical formula
- K(☐,Na)₂(Mn,Fe,Mg)₂[(Be,Al)₃Si₁₂]O₃₀
- Crystal system
- Hexagonal
- Mohs hardness
- 6.0
- Density
- 2.72 g/cm³
- Elements in formula
- Potassium, Sodium, Manganese, Iron, Magnesium, Beryllium, Aluminium, Silicon, Oxygen
- Number of elements
- 9
- IMA status
- Approved
- Type locality
- Caspar quarry
- Named after
- University of Vienna
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3612730