Skutterudite 9.21 ct Round 11.20 mm x 6.50 mm max2030

Description

Skutterudite 9.21 ct Round 11.20 mm x 6.50 mm max2030

Skutterudite

Skutterudite Is a Cobalt Arsenide with formula :(Co,Ni)As3-x and hardness 6. Is an important ore of Nickel and Cobalt with a very heavy specific gravity and a silver metallic luster. It’s name come from Skutterud , Norway but this stone here is from Bou Azzer, Anti- Atlas Mountains,Morocco.Untreated.Full facet.