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Hexamolybdenum

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About HexamolybdenumHide

Formula:
(Mo,Ru,Fe,Ir,Os)
Specific Gravity:
11.90 (Calculated)
Crystal System:
Hexagonal
Name:
The name hexamolybdenum refers to the symmetry (primitive hexagonal) and composition (Mo-rich).
Dimorph of:
A Mo-dominant alloy. The Mo analogue of ruthenium, osmium, hexaferrum and garutiite.

Reported as a link between (1) Os- and/or Ru- and (2) Fe-rich meteoritic alloys. It may be a derivative of (1) and a precursor of (2).


Classification of HexamolybdenumHide

Approved
Approval Year:
2007

Pronounciation of HexamolybdenumHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of HexamolybdenumHide

Density:
11.90 g/cm3 (Calculated)

Chemical Properties of HexamolybdenumHide

Formula:
(Mo,Ru,Fe,Ir,Os)

Crystallography of HexamolybdenumHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 2.7506 Å, c = 4.4318 Å
Ratio:
a:c = 1 : 1.611
Unit Cell V:
29.04 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.382(24)
2.216(26)
2.098(100)
1.622(15)
1.375(17)
1.255(18)
1.169(20)
1.150(14)

Type Occurrence of HexamolybdenumHide

General Appearance of Type Material:
grains and crystals, ca. 1 to ca. 3 microns in diameter
Geological Setting of Type Material:
early-stage mineral

Synonyms of HexamolybdenumHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Perovskite1 photo of Hexamolybdenum associated with Perovskite on mindat.org.
Hercynite1 photo of Hexamolybdenum associated with Hercynite on mindat.org.
Krotite1 photo of Hexamolybdenum associated with Krotite on mindat.org.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for HexamolybdenumHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ma, C., J.R.Beckett & G.R.Rossman (2009): Allendeite and hexamolybdenum: two new ultra-refractory minerals in Allende and two missing links. 40th Lunar and Planetary Science Conference and Abstracts, 1402 (2009)
Ma, C., Beckett, J.R., Rossman, G.R. (2014): Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite. American Mineralogist, 99, 654-666

Internet Links for HexamolybdenumHide

Localities for HexamolybdenumHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Victoria
    • City of Greater Shepparton
      • Murchison
Ma, C., Beckett, J. R., & Rossman, G. R. (2014). Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo, Ru, Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite. American Mineralogist, 99(4), 654-666.
Germany
 
  • Bavaria
    • Lower Bavaria
      • Straubing
Harald G. Dill, Detlev Klosa, Gustav Steyer, The “Donauplatin”: source rock analysis and origin of a distal fluvial Au-PGE placer in Central Europe, Miner Petrol (2009) 96:141–161.
Mexico (TL)
 
  • Chihuahua
    • Pueblito de Allende
Ma, C., Beckett, J.R., Rossman, G.R. (2014): Allendeite (Sc4Zr3O12) and hexamolybdenum (Mo,Ru,Fe), two new minerals from an ultrarefractory inclusion from the Allende meteorite. American Mineralogist, 99, 654-666
Northwest Africa Meteorites
 
Ma, C., Kampf, A.R., Connolly, H.C. Jr., Beckett, J.R., Rossman, G.R., Sweeney Smith, A.A., Schrader, D.L. (2011) Krotite: a new refractory mineral from the NWA 1934 meteorite. American Mineralogist, 96, 709-715.
Mineral and/or Locality  
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