| Euchroite | |
| Category: | Arsenate minerals |
| Formula: | Cu2AsO4OH·3H2O |
| Imasymbol: | Euc[1] |
| Strunz: | 8.DC.07 |
| System: | Orthorhombic |
| Class: | Disphenoidal (222) H-M symbol: (2 2 2) |
| Symmetry: | P212121 |
Euchroite is a hydrated copper arsenate hydroxide mineral with formula: Cu2AsO4OH·3H2O. It is a vitreous green to emerald green mineral crystallizing in the orthorhombic system. It has a Mohs hardness of 3.5–4.0 and a specific gravity of 3.39–3.45. It was first described in 1823 in Ľubietová, Slovakia.