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Hydrokenoelsmoreite

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Hydrous tungsten oxide mineral
Hydrokenoelsmoreite
White stolzite grains accent rich yellow veins of Hydrokenoelsmoreite microcrystals
General
CategoryOxide minerals
Formula
(repeating unit)		□2W2O6H2O
IMA symbolHkm
Strunz classification4.DH.15
Crystal system3C polytype: Isometric
6R polytype: Trigonal
Crystal class3C polytype: Hexoctahedral (m3m)
6R polytype: Rhombohedral (3)
Identification
ColorWhite
CleavageNone
FractureSplintery
TenacityBrittle
Mohs scale hardness3
LusterAdamantine
StreakWhite
References

Hydrokenoelsmoreite is a hydrous tungsten oxide mineral with formula □2W2O6(H2O). Hydrokenoelsmoreite is a colorless to white, translucent isometric mineral. It has a Mohs hardness of 3, exhibits no cleavage and has a splintery fracture. It has a vitreous to adamantine luster. It is optically isotropic with an index of refraction of n = 2.24.

It forms from the oxidation of ferberite within granitic pegmatite dykes and in pegmatitic greisen veins. It has a structure based on a defect pyrochlore lattice (A2B2O6O’).

It was first described for an occurrence in Elsmore Hill, New South Wales, Australia from where it takes its name.

References

  1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. Mineralienatlas
  3. Mindat
  4. Webmineral data
  • Williams, P.A., Leverett, P., Sharpe, J.L., Colchester, D.M. (2005): Elsmoreite, cubic WO3•0.5H2O, a new mineral species from Elsmore, New South Wales, Australia. Canadian Mineralogist, 43, 1061-1064
  • American Mineralogist, volume 91, pages 216–224, 2006.
Tungsten minerals
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  • Atencio, D., Andrade, M. B., Christy, A. G., Gieré, R., & Kartashov, P. M. (2010). The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48(3), 673–698.doi: 10.3749/canmin.48.3.673


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