Stone, minerals and semiprecious of the world stone
Sulphide: Rammelsbergite -->rus

   Diagnostic cart.

   Ni As2 (arsenate of nickel)
   Crystal structure rhombic
   Hardness on the Mohs scale 5,5-6
   Specific unit weight mass 6,9-7,2
   Cleavage distinct
   Fracture, break fragile frail brittle
   Colors white with a rose tint
   Colors in powder triturate grey-black
   Glance (glitter, glare) metallic

   Presented as dense the masses short-grained, and also radiant addition. Crystals are rare and always small. Colors stannum (tin)-white with a light-rose-red tint colors.

   Diagnostic indication.

   The green raid of annabergite can appear in the conditions of humidity.

   Origin provenance genesis.

   Be found more frequent than all in an association with a nickeline in Shneeberge in Saxony (Germany), Turtmantal in Valeeze (Switzerland), Cobalt in the province of Ontario (Canada), Alt-Akhman (Morocco), Sen-Mari-o-min in Elzase (France), Mokhok in the state Michigan (USA) and Chile. In Italy is in the mine of Sarrabus (an area is Sardinia), Monte-Cruvino in Val-di-Suza and near Usselio in Valedi Kind (an area Pemont), Chinkevalli in Valsugana (area of Trentino).