IMA mineral species
Yakhontovite
(Ca,Na,K)₀.₂(Cu,Fe,Mg)₂(Si₄O₁₀)(OH)₂·3H₂O
Smectite, phyllosilicate mineral.
Properties
| Chemical formula | (Ca,Na,K)₀.₂(Cu,Fe,Mg)₂(Si₄O₁₀)(OH)₂·3H₂O |
|---|---|
| Elements | Ca, Na, K, Cu, Fe, Mg, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Ykh |
| Nickel–Strunz class | 9.EC.40 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Komsomolsky District, Khabarovsk Krai, Russia
- 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
- Yakhontovite on Mindat.org
- Wikidata item Q4022386 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic