Properties
| Chemical formula | Al₄Ta₃O₁₃(OH) |
|---|---|
| Elements | Al, Ta, O, H |
| Crystal system | Trigonal |
| Mohs hardness | 7.5 |
| Density | — |
| Streak | white |
| Color | — |
| IMA symbol | Spn |
| Nickel–Strunz class | 4.DC.10 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Simpsonite on Mindat.org
- Wikipedia article
- Wikidata item Q408497 (source of this page's data – you can correct it there)
IMA mineral species
7–8
Trigonal
YellowBrownWhite & Clear