IMA mineral species
Hillesheimite
(K,Ca,Ba,☐)₂(Mg,Fe,Ca,☐)₂[(Si,Al)₁₃O₂₃(OH)₆](OH)·8H₂O
Phyllosilicate mineral.
Properties
| Chemical formula | (K,Ca,Ba,☐)₂(Mg,Fe,Ca,☐)₂[(Si,Al)₁₃O₂₃(OH)₆](OH)·8H₂O |
|---|---|
| Elements | K, Ca, Ba, Mg, Fe, Si, Al, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Hlh |
| Nickel–Strunz class | 9.EB.25 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Graulay, Germany
- 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
- Hillesheimite on Mindat.org
- Wikidata item Q19841437 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic