Nickeline ct. 20.25

Nickeline Is a Nickel Arsenide with formula NiAs and hardness of 5.5. It may contain small quantity of Cobalt,Antimony,Iron and Sulfur It belong to the group of Nickeline used as synonimous of Niccolite. Is a minor ore of Nickel ,high specific gravity and a metallic luster. The color is copper/silver-pink and in the middle age was mined thinking of being a copper mineral. Interesting and unusual material to be facet. It comes from Cobal area, Ontario, Canada. Size:13.6x13.6x7.8 mm. Weight: 20.25 ct. CODE# 2116