Category Oxide minerals Strunz classification 4.DH.15 | Formula
(repeating unit) □2W2O6H2O Color White | |
 | ||
Crystal system 3C polytype: Isometric
6R polytype: Trigonal Crystal class 3C polytype: Hexoctahedral (m3m)
6R polytype: Rhombohedral (3) | ||
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
Hydrokenoelsmoreite Wikipedia(Text) CC BY-SA