IMA mineral species
Stilpnomelane
(K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O
Smectite, phyllosilicate mineral.
Properties
| Chemical formula | (K,Ca,Na)(Fe,Mg,Al)₈(Si,Al)₁₂(O,OH)₃₆·nH₂O |
|---|---|
| Elements | K, Ca, Na, Fe, Mg, Al, Si, O, H |
| Crystal system | — |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Stp |
| Nickel–Strunz class | 9.EG.40 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Stilpnomelane on Mindat.org
- Wikipedia article
- Wikidata item Q1999524 (source of this page's data – you can correct it there)
IMA mineral species
YellowGreenBrownBlack