IMA mineral species
Ferrokentbrooksite
Na₁₅Ca₆(Fe,Mn)₃Zr₃NbSi₂₅O₇₃(O,OH,H₂O)₃Cl₂
Cyclosilicate mineral.
Properties
🔷 Trigonal✏️ streak white
| Chemical formula | Na₁₅Ca₆(Fe,Mn)₃Zr₃NbSi₂₅O₇₃(O,OH,H₂O)₃Cl₂ |
|---|---|
| Elements | Na, Ca, Fe, Mn, Zr, Nb, Si, O, H, Cl |
| Crystal system | Trigonal |
| Mohs hardness | — |
| Density | — |
| Streak | white |
| Color | — |
| IMA symbol | Fktb |
| Nickel–Strunz class | 9.CO.10 |
“—” 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
- Ferrokentbrooksite on Mindat.org
- Wikipedia article
- Wikidata item Q3743246 (source of this page's data – you can correct it there)
IMA mineral species
Trigonal
RedBrown