Properties
⛏ Mohs hardness2
💅🪙🍶🔪💎
Scratches with a fingernail.
| Chemical formula | Cu(UO₂)₂(SO₄)₂(OH)₂·8H₂O |
|---|---|
| Elements | Cu, U, O, S, H |
| Crystal system | Triclinic |
| Mohs hardness | 2 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Jh |
| Nickel–Strunz class | 7.EB.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Elias mine, Czech Republic
- 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
- Johannite on Mindat.org
- Wikipedia article
- Wikidata item Q415950 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Triclinic
Green