General Information:
Chemical Formula:
Rh12As7
Composition:
(Molecular Weight = 1,759.32 gm)
Arsenic 29.81 % As
Rhodium 70.19 % Rh
Empirical Formula:
Rh12As7
Environment:
Residual mineral in a placer depost. Intergrown with isoferropatinum and tulameenite within native ruthenium.
IMA Status:
Approved IMA (Dana # Added)
Locality:
A small unnamed placer deposit in the upper Miass River, South Urals, Russia.
Name Origin:
Named after Yuri Aleksandrovich Polkanov (b. 1935), Academician, Institute of Mineral Resources, Academy of Technical Sciences of Ukraine, known for his studies of the mineralogy an d ore deposits of the Crimean Peninsul
Physical Properties:
Color:
gray.
Density:
10.22
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Luster:
Metallic
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