IMA mineral species
Niobokupletskite
K₂NaMn²⁺₇(Nb,Ti)(Si₄O₁₂)₂O₂(OH)₄(O,F)
Inosilicate mineral.
Properties
| Chemical formula | K₂NaMn²⁺₇(Nb,Ti)(Si₄O₁₂)₂O₂(OH)₄(O,F) |
|---|---|
| Elements | K, Na, Mn, Nb, Ti, Si, O, H, F |
| Crystal system | — |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Nbk |
| Nickel–Strunz class | 9.DC.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Poudrette quarry, Canada
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Niobokupletskite on Mindat.org
- Wikidata item Q3877262 (source of this page's data – you can correct it there)
IMA mineral species