Polkanovite R070076

Name: Polkanovite
RRUFF ID: R070076
Ideal Chemistry: Rh12As7
Locality: Miass River, Urals, Russia
Source: Michael Scott S105051 [view label]
Owner: RRUFF
Description: Dark bluish-gray semimetallic inclusion in Os,Ir,Ru matrix. The sample is a polished fragment embedded in epoxy
Status: The identification of this mineral has been confirmed only by chemical analysis
RRUFF ID: R070076.2
Sample Description: Microprobe Fragment
Measured Chemistry: dark phase: (Rh8.66Ni2.10Pd0.85Ru0.23Pt0.08Cu0.02)Σ=12As7.00 ; trace amounts of Os and Sb ; grey inclusion in the dark phase: (Pt1.98Ir0.01Rh0.01)Σ=2(Fe0.74Ni0.05Cu0.21)Σ=1Cu1.00 (tulameenite)
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

  To download sample data,
  please select a specific
  orientation angle.

Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
RRUFF ID: R070076
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
REFERENCES for Polkanovite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Lambert-Andron B, Dhahri E, Chaüdouet P, Madar R (1985) Crystal structure of Rh12As7, Journal of the Less-Common Metals, 108, 353-358

Pivan J Y, Guérin R, Sergent M (1985) Rh12As7, a host structure for rare earth elements: Crystal structures of Rh12As7 and Ho2Rh12As7, Journal of the Less-Common Metals, 107, 249-258

Britvin S N, Rudashevsky N S, Bogdanova A N, Shcherbachov D K (1998) Polkanovite Rh12As7 — the new mineral from a placer at the Miass River (the South Urals), Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 127, issue 2 60-62   [view file]

Jambor J L, Roberts A C (1999) New mineral names, American Mineralogist, 84, 193-198   [view file]

Pekov I V (2007) New minerals from former Soviet Union countries, 1998-2006: new minerals approved by the IMA commission on new minerals and mineral names, Mineralogical Almanac, 11, 9-51   [view file]