Properties
| Chemical formula | Na₂Zr(Si₄O₁₁)·2H₂O |
|---|---|
| Elements | Na, Zr, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Tum |
| Nickel–Strunz class | 9.EA.60 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Vuoriyarvi alkaline-ultrabasic massif, 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
- Tumchaite on Mindat.org
- Wikipedia article
- Wikidata item Q4000408 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic
White & Clear