Rutheniridosmine Mineral Data

Rutheniridosmine Mineral Data

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General Rutheniridosmine Information

Chemical Formula:

(Ir,Os,Ru)

Composition:

Molecular Weight = 182.50 gm

Iridium 63.20 % Ir

Osmium 31.27 % Os

Ruthenium 5.54 % Ru

______

100.00 %

Empirical Formula:

Ir_0.6Os_0.3Ru_0.1

Environment:

Placer deposits derived from ultrabasic rocks.

IMA Status:

Approved IMA 1973

Locality:

Spruce Creek and Tulameen River areas, British Columbia, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for the composition (Ru, Os, Ir).

Synonym:

ICSD 40353

PDF 41-601

Rutheniridosmine Image

Images:

Rutheniridosmine

Comments: Grain of rutheniridosmine.
Location: Nevjansk, Ural Mts., Russia. Scale: Grain size 2.5 mm.
© John Veevaert

Rutheniridosmine Crystallography

Axial Ratios:

a:c = 1:1.58671

Cell Dimensions:

a = 2.71, c = 4.3, Z = 2; V = 27.35 Den(Calc)= 22.16

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

Physical Properties of Rutheniridosmine

Cleavage:

[???] Perfect

Color:

White.

Diaphaniety:

Opaque

Hardness:

6-7 - Orthoclase-Quartz

Luster:

Metallic

Streak:

gray

Optical Properties of Rutheniridosmine

RL Anisotrophism:

Weak to moderate, sometimes with wavy extinction, colors tinged with orange.

RL Color:

White with a bluish gray tinge.

RL Pleochroism:

Weak to absent.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Rutheniridosmine in Air**
λ	R	∑ R(λ)
487 nm	72.00
556 nm	72.00
589 nm	67.80
650 nm	68.00

**Calculated Relative Intensity Colors of Rutheniridosmine in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	130%
R

Calculated Properties of Rutheniridosmine

Electron Density:

r_electron=17.8 gm/cc
note: r_{Rutheniridosmine}=22.2 gm/cc.

Fermion Index

Fermion Index = 0.07184
Boson Index = 0.92816

Photoelectric:

PE_{Rutheniridosmine}=1,443.93 barns/electron
U=PE_{Rutheniridosmine} x r_electron=25738.42 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Rutheniridosmine is Not Radioactive

Rutheniridosmine Classification

Dana Class:

1.2.2.3 (1)Native Elements

(1.2)with platinum group metals and alloys

(1.2.2)Osmium group (Space Group P63/mmc)

1.2.2.1 Osmium (Os,Ir) P 6₃/mmc 6/m 2/m 2/m

1.2.2.2 Ruthenium (Ru,Ir,Os) P 6₃/mmc 6/m 2/m 2/m

1.2.2.3 Rutheniridosmine (Ir,Os,Ru) P 6₃/mmc 6/m 2/m 2/m

1.2.2.4 Hexaferrum! (Fe,Os,Ru,Ir) P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

I/A.13-40 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.13 - Osmium series

I/A.13-10 Rhenium* Re P 6₃/mmc 6/m 2/m 2/m

I/A.13-15 Hexaferrum! (Fe,Os,Ru,Ir) P 6₃/mmc 6/m 2/m 2/m

I/A.13-20 Osmium (Os,Ir) P 6₃/mmc 6/m 2/m 2/m

I/A.13-30 Ruthenium (Ru,Ir,Os) P 6₃/mmc 6/m 2/m 2/m

I/A.13-40 Rutheniridosmine (Ir,Os,Ru) P 6₃/mmc 6/m 2/m 2/m

Other Rutheniridosmine Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Rutheniridosmine :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Print or Cut-and-Paste your Rutheniridosmine Specimen Label here :

Rutheniridosmine

(Ir,Os,Ru)
Dana No: 1.2.2.3 Strunz No: I/A.13-40
Locality:

Notes: