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About HexamolybdenumHide

Specific Gravity:
11.90 (Calculated)
Crystal System:
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

Approval year:

Pronounciation of HexamolybdenumHide

PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of HexamolybdenumHide

11.90 g/cm3 (Calculated)

Chemical Properties of HexamolybdenumHide


Crystallography of HexamolybdenumHide

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

X-Ray Powder DiffractionHide

Powder Diffraction Data:
2.382 Å(24)
2.216 Å(26)
2.098 Å(100)
1.622 Å(15)
1.375 Å(17)
1.255 Å(18)
1.169 Å(20)
1.150 Å(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:
1 photo of Hexamolybdenum associated with PerovskiteCaTiO3
1 photo of Hexamolybdenum associated with HercyniteFe2+Al2O4
1 photo of Hexamolybdenum associated with KrotiteCaAl2O4

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.
  • 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.
  • 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.
  • Central Greece
    • Phthiotis
      • Domokos
Ifandi, E., Zaccarini, F., Tsikouras, B., Grammatikopoulos, T., Garuti, G., Karipi, S., & Hatzipanagiotou, K. (2018). First occurrences of Ni-V-Co phosphides in chromitite from the Agios Stefanos Mine, Othrys Ophiolite, Greece. Ofioliti, 43(2), 131-145.
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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