Properties
⛏ Mohs hardness2.5
💅🪙🍶🔪💎
Scratches with a fingernail.
⚖ Density4.66 g/cm³
Very heavy
| Chemical formula | Pb₂₁Cu₂₀Cl₄₂(OH)₄₀·6H₂O |
|---|---|
| Elements | Pb, Cu, Cl, O, H |
| Crystal system | — |
| Mohs hardness | 2.5 |
| Density | 4.66 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Cge |
| Nickel–Strunz class | 3.DB.20 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): El Boleo, Mexico
- 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
- Cumengeite on Mindat.org
- Wikipedia article
- Wikidata item Q1143781 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Blue