IMA mineral species
Windhoekite
Ca₂Fe³⁺₃₋ₓ[Si₈O₂₀](OH)₄·10H₂O
Phyllosilicate mineral.
Properties
| Chemical formula | Ca₂Fe³⁺₃₋ₓ[Si₈O₂₀](OH)₄·10H₂O |
|---|---|
| Elements | Ca, Fe, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Whk |
| Nickel–Strunz class | 9.EE.20 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Aris quarries, Namibia
- 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
- Windhoekite on Mindat.org
- Wikidata item Q19862059 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic