IMA mineral species
Lavendulan
NaCaCu₅(AsO₄)₄Cl·5H₂O
Arsenate mineral.
Properties
⛏ Mohs hardness2.5 – 3
💅🪙🍶🔪💎
A copper coin scratches it.
⚖ Density3.54 g/cm³
Heavy
🔷 Monoclinic✏️ streak light blue
| Chemical formula | NaCaCu₅(AsO₄)₄Cl·5H₂O |
|---|---|
| Elements | Na, Ca, Cu, As, O, Cl, H |
| Crystal system | Monoclinic |
| Mohs hardness | 2.5 – 3 |
| Density | 3.54 g/cm³ |
| Streak | light blue |
| Color | — |
| IMA symbol | Lvd |
| Nickel–Strunz class | 8.DG.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 2.5 – 3: 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): Jáchymov, 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.
Varieties & related stones
Learn more
- Lavendulan on Mindat.org
- Wikipedia article
- Wikidata item Q780935 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Monoclinic
GreenBlue
Soft, Scratches Easily