Omeiite Mineral Data
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General Omeiite Information
Chemical Formula:
(Os,Ru)As2
Composition:
Molecular Weight = 317.76 gm
Arsenic
47.16 % As
Osmium
44.89 % Os
Ruthenium
7.95 % Ru
______
100.00 %
Empirical Formula:
Os
0.75
Ru
0.25
As
2
Environment:
Found in a Cu-Ni sulfide deposit associated with an ultramafic body.
IMA Status:
Approved IMA 1978
Locality:
Danba, Omeishan Mt, Sichuan (Szechuan), China, Link to 
MinDat.org
Location Data.
Name Origin:
Named for the locality.
Name Pronunciation:
Omeiite
Synonym:
ICSD 995
PDF 34-336