Ruthenium Mineral Data

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General Ruthenium Information

Chemical Formula:

(Ru,Ir,Os)

Composition:

Molecular Weight = 137.33 gm

Iridium 41.99 % Ir

Osmium 13.85 % Os

Ruthenium 44.16 % Ru

______

100.00 %

Empirical Formula:

Ru_0.6Ir_0.3Os_0.1

Environment:

Placer deposits derived from ultrabasic rocks. Included in rutheniridosmine and in platinum.

IMA Status:

Approved IMA 1974

Locality:

Horakanai, Hokkaido, Japan. Link to MinDat.org Location Data.

Name Origin:

Named for the element (Latin, Ruthenia = "Russia.").

Name Pronunciation:

Ruthenium + Pronunciation

Synonym:

Iridrhodruthenium - Ir-Rh-rich ruthenium

Ruthenium Image

Images:

Ruthenium Palladodymite Hongshiite

Comments: Palladodymite (light gray, in two small grains), hongshiite (pale creamy grayish, tarnished brownish) in massive ruthenium. Polished section (from microprobe analysis) in reflected light.
Location: Miass River, Zlatoust, Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: Picture size 0.09 mm.
© Thomas Witzke / Abraxas-Verlag

Images:

Ruthenium Isoferroplatinum

Comments: Scanning electron micrograph of polished section of ruthenium nugget with isoferroplatinum inclusions.
Location: Miass River, Chelyabinsk District, Southern Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Ruthenium Crystallography

Axial Ratios:

a:c = 1:1.59985

Cell Dimensions:

a = 2.704, c = 4.326, Z = 2; V = 27.39 Den(Calc)= 16.65

Crystal System:

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.056(1), 2.343(0.4), 2.142(0.35),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Hexagonal closest packed, hcp, structure

Physical Properties of Ruthenium

Color:

Tin white.

Density:

12.2

Diaphaneity:

Opaque

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

6.5 - Pyrite

Luster:

Metallic

Optical Properties of Ruthenium

RL Anisotrophism:

Weak.

RL Color:

White with a creamy tint.

Calculated Properties of Ruthenium

Electron Density:

Bulk Density (Electron Density)=13.8 gm/cc
note: Specific Gravity of Ruthenium =16.7 gm/cc.

Fermion Index:

Fermion Index = 0.15
Boson Index = 0.85

Photoelectric:

PE_Ruthenium= 917.29 barns/electron
U=PE_Ruthenium x rElectron Density=12700.71 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ruthenium is Not Radioactive

Ruthenium Classification

Dana Class:

01.02.02.02 (01)Native Elements

(01.02)with platinum group metals and alloys

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

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

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

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

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

01.02.02.05 Hexamolybdenum! (Mo,Ru,Fe,Ir,Os) P 6₃/mmc 6/m 2/m 2/m

01.02.02.06 IMA2008-055! (Ni,Fe,Ir) P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

01.AF.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AF -Platinum-group elements

01.AF.05 Osmium (Os,Ir) P 6₃/mmc 6/m 2/m 2/m

01.AF.05 Rutheniridosmine (Ir,Os,Ru) P 6₃/mmc 6/m 2/m 2/m

01.AF.05 Ruthenium (Ru,Ir,Os) P 6₃/mmc 6/m 2/m 2/m

Other Ruthenium Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Ruthenium :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Ruthenium

(Ru,Ir,Os)
Dana No: 01.02.02.02 Strunz No: 01.AF.05
Locality:

Notes: