Facts
- Chemical formula
- KNa₂B₃Si₁₂O₃₀
- Crystal system
- Hexagonal
- Mohs hardness
- 5.0
- Number of elements
- 5
- IMA status
- Approved
- Type locality
- Poudrette quarry
- Named after
- Poudrette family
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3909587