| Rammelsbergite | |
|---|---|
Rammelsbergite |
|
| General | |
| Category | Mineral |
| Chemical formula | NiAs2 |
| Strunz classification | 02.EB.15a |
| Identification | |
| Color | metallic silvery to tin white to reddish |
| Crystal system | orthorhombic (prismatic) |
| Mohs scale hardness | 5.5-6 |
| Streak | gray to black |
| Specific gravity | 7.0-7.1 |
Rammelsbergite is a nickel arsenide mineral with formula NiAs2. It forms metallic silvery to tin white to reddish orthorhombic prismatic crystals, but is usually massive in form. It has a Mohs hardness of 5.5 and a specific gravity of 7.1.
It was first described in 1854 from its type locality in the Schneeberg District in Saxony, Germany. It was named after the German chemist and mineralogist, Karl Friedrich August Rammelsberg.