IMA mineral species
Tsumcorite
PbZn₂(AsO₄)₂·2H₂O
Arsenate mineral.
Properties
⛏ Mohs hardness4.5
💅🪙🍶🔪💎
A steel knife scratches it, it won't scratch glass.
🔷 Monoclinic✏️ streak yellow
| Chemical formula | PbZn₂(AsO₄)₂·2H₂O |
|---|---|
| Elements | Pb, Zn, As, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | 4.5 |
| Density | — |
| Streak | yellow |
| Color | — |
| IMA symbol | Tmc |
| Nickel–Strunz class | 8.CG.15 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 4.5: 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): Tsumeb Mine, 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
- Tsumcorite on Mindat.org
- Wikipedia article
- Wikidata item Q1065505 (source of this page's data – you can correct it there)
IMA mineral species
4–5
Monoclinic
RedOrangeYellowBrown
Soft, Scratches Easily