| Hydrokenoelsmoreite | |
| Category: | Oxide minerals |
| Formula: | □2W2O6H2O |
| Imasymbol: | Hkm[1] |
| Strunz: | 4.DH.15 |
| System: | 3C polytype: Isometric 6R polytype: Trigonal |
| Class: | 3C polytype: Hexoctahedral (mm) 6R polytype: Rhombohedral |
| Color: | White |
| Cleavage: | None |
| Fracture: | Splintery |
| Tenacity: | Brittle |
| Mohs: | 3 |
| Luster: | Adamantine |
| Streak: | White |
| References: | [2] [3] [4] |
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.