Hexamolybdenum Mineral Data

General Hexamolybdenum Information

Chemical Formula:

(Mo,Ru,Fe,Ir,Os)

Composition:

Molecular Weight = 104.04 gm

Iron 4.29 % Fe

Nickel 0.56 % Ni

Molybdenum 51.64 % Mo

Iridium 12.93 % Ir

Osmium 5.48 % Os

Ruthenium 23.32 % Ru

Tungsten 1.77 % W

______

100.00 %

Empirical Formula:

Mo_0.56Ru_0.24Fe⁰⁺_0.08Ir_0.07Os_0.03W_0.01Ni_0.01

Environment:

Occurs as micro- to nano-crystals in refractory inclusions in the meteorite. Possible pre-solar phase.

IMA Status:

Approved IMA 2007 (Dana # Added)

Locality:

Allende meteorite, Pueblito de Allende, Chihuahua, Mexico Link to MinDat.org Location Data.

Name Origin:

The name refers to the symmetry (primitive hexagonal) and composition (Mo-rich).

Synonym:

IMA2007-029

Hexamolybdenum Image

Images:

Allendeite Hexamolybdenum

Comments: BSE image of the refractory inclusion in the Allendeite meteorite containing allendeite (BSE bright phase) and hexamolybdenum (BSE bright phase).
Location: Allende meteorite, Pueblito de Allende, Chihuahua, Mexico.. Scale: See Image.
© Lunar and Planetary Science Instutute

Hexamolybdenum Crystallography

Axial Ratios:

a:c = 1:1.61121

Cell Dimensions:

a = 2.7506, c = 4.4318, Z = 2; V = 29.04 Den(Calc)= 11.90

Crystal System:

Hexagonal - Dihexagonal Dipyramidal H-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): 2.098(1), 2.216(0.26), 2.382(0.24),1.169(0.2), 1.255(0.18), 1.375(0.17), 1.622(0.15), 1.15(0.14),

Physical Properties of Hexamolybdenum

Habit:

Inclusions - Generally found as inclusions in other minerals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Calculated Properties of Hexamolybdenum

Electron Density:

Bulk Density (Electron Density)=10.3 gm/cc
note: Specific Gravity of Hexamolybdenum =11.9 gm/cc.

Fermion Index:

Fermion Index = 0.21
Boson Index = 0.79

Photoelectric:

PE_{Hexamolybdenum}= 424.68 barns/electron
U=PE_{Hexamolybdenum} x rElectron Density=4,357.18 barns/cc.

Radioactivity:

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

Hexamolybdenum Classification

Dana Class:

01.02.02.05 (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.XX.00 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.X - Unclassified Strunz ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, pho

01.XX -Unknown

01.XX.00 Tantalum* Ta I m3m 4/m 3 2/m

01.XX.00 Hexamolybdenum! (Mo,Ru,Fe,Ir,Os) P 6₃/mmc 6/m 2/m 2/m

01.XX.00 Brownleeite! MnSi P 2₁3 2 3

Other Hexamolybdenum Information

References:

NAME( Lunar and Planetary Science Conference March 2000) PHYS. PROP.(Lunar and Planetary Science Conference March 2000)

See Also:

Links to other databases for Hexamolybdenum :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Hexamolybdenum

(Mo,Ru,Fe,Ir,Os)
Dana No: 01.02.02.05 Strunz No: 01.XX.00
Locality:

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