IMA mineral species
Polyakovite-(Ce)
(Ce,Ca)₄(Mg,Fe²⁺)(Cr³⁺,Fe³⁺)₂(Ti,Nb)₂(Si₂O₇)₂O₈
Sorosilicate mineral.
Properties
| Chemical formula | (Ce,Ca)₄(Mg,Fe²⁺)(Cr³⁺,Fe³⁺)₂(Ti,Nb)₂(Si₂O₇)₂O₈ |
|---|---|
| Elements | Ce, Ca, Mg, Fe, Cr, Ti, Nb, Si, O |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Pak-Ce |
| Nickel–Strunz class | 9.BE.70 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Ilmen Nature Reserve, 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
- Polyakovite-(Ce) on Mindat.org
- Wikidata item Q3907727 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic