General Information:
Chemical Formula:(Os,Ru)AsS
Composition:(Molecular Weight = 274.91 gm)Arsenic 27.25 %
AsRuthenium 9.19 %
RuOsmium 51.89 %
OsSulfur 11.66 %
S Empirical Formula: Os0.75Ru0.25AsS
IMA Status:Approved IMA 1972
Locality:Gold Bluff, 3 to 6 miles north of Orick, Humboldt Co., California.
Name Origin:Named after it's chemical composition of osmium and arsenic.
Physical Properties: Color:gray.
Density:8.44
Diaphaniety:Opaque
Hardness:6 - Orthoclase
Luster:Metallic
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