| Achávalite | |
| Category: | Selenide mineral |
| Formula: | (Fe,Cu)Se |
| Imasymbol: | Ahv[1] |
| Molweight: | 134.81 g/mol |
| Strunz: | 2.CC.05 |
| System: | Hexagonal |
| Class: | Dihexagonal dipyramidal (6/mmm) H-M symbol: (6/m 2/m 2/m) |
| Symmetry: | P63/mmc |
| Unit Cell: | a = 3.636, c = 5.946 [Å], Z = 2 |
| Color: | Dark grey |
| Mohs: | 2.5 |
| Luster: | Metallic |
| Streak: | Grey-black |
| Diaphaneity: | Opaque |
| Gravity: | 6.53 |
| References: | [2] [3] |
Achávalite is a selenide mineral that is a member of the nickeline group. It has only been found in a single Argentinian mine system, being first discovered in 1939 in a selenide deposit. The type locality is Cacheuta mine, Sierra de Cacheuta, Mendoza, Argentina.[2] [3] [4]