IMA mineral species
Cyanotrichite
Cu₄Al₂SO₄(OH)₁₂·2H₂O
Sulfate mineral.
Properties
⛏ Mohs hardness2
💅🪙🍶🔪💎
Scratches with a fingernail.
🔷 Orthorhombic✏️ streak light blue
| Chemical formula | Cu₄Al₂SO₄(OH)₁₂·2H₂O |
|---|---|
| Elements | Cu, Al, S, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | 2 |
| Density | — |
| Streak | light blue |
| Color | — |
| IMA symbol | Cya |
| Nickel–Strunz class | 7.DE.10 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 2: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Cyanotrichite on Mindat.org
- Wikipedia article
- Wikidata item Q421020 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Orthorhombic
Blue
Soft, Scratches Easily