IMA mineral species
Okruschite
Ca₂Mn²⁺₅Be₄(AsO₄)₆(OH)₄·6H₂O
Hydrous arsenate mineral.
Properties
⛏ Mohs hardness3.5
💅🪙🍶🔪💎
A copper coin scratches it.
| Chemical formula | Ca₂Mn²⁺₅Be₄(AsO₄)₆(OH)₄·6H₂O |
|---|---|
| Elements | Ca, Mn, Be, As, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | 3.5 |
| Density | — |
| Streak | — |
| Color | white |
| IMA symbol | Okr |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 3.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
🌍 Where it's found
Type locality (where it was first described): Fuchs quarry, Hartkoppe, 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
- Okruschite on Mindat.org
- Wikidata item Q19861100 (source of this page's data – you can correct it there)
IMA mineral species
3–4
Monoclinic
White & Clear
Soft, Scratches Easily