| Mineral | Lavendulan | 
|---|---|
| Formula | NaCaCu5(AsO4)4Cl · 5H2O | 
| Crystal Form | Monoclinic/Prismatic [2/m] | 
| Cleavage | Distinct on {100}{001}, Good on {010} | 
| Color | Turquoise, Blue, Lavender blue, Greenish blue, Pale blue | 
| Density | 3.5 – 3.6 g/cm3 | 
| Diaphaneity | Translucent | 
| Hardness | 2.5 | 
| Lustre | Vitreous, Waxy, Satiny (in aggregates) | 
| Streak | Light blue | 
| Type Loc. | Jáchymov, Karlovy Vary Dist., Karlovy Vary Rgn., Bohemia, Czech Republic | 
| Dana 8 Class | 42.9.4.2 | 
| Strunz Class | 7/D.25-20 | 
| Mindat | mindat.org | 
| WebMineral | WebMineral | 
| ID | 366 |