Mineral description : Rammelsbergite

Rammelsbergite from Vimbodi, Portugal.

Mineral class Sulphides : Nickeline - Cobaltine - Skutterudite group.
Chemical formula NiAs2
Crystal system Orthorombic.
Habitus Crystals prismatic, radial. Also as massive to granular.
Cleavage Indistinct, uneven fracture.
Hardness 5.5
Density 7.1
Color Tin white to reddish white. Opaque.
Streak Black
Luster Metallic.
Notes Hard to separate from Safflorite.
Named after the german scientist K. F. Rammelsberg (1812-1899).
Locations A rare mineral in Sweden.
  • Adak and Lainijaur, Skellefteċ mining field. Small quantities with safflorite.

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Last changed : 1998-08-28