Wakefieldite-(La)
| Wakefieldite-(La) | |
|---|---|
Wakefieldite-(La) on hausmannite | |
| General | |
| Category | Rare-earth mineral |
| Formula | (LaVO4) |
| IMA symbol | Wf-La |
| Strunz classification | 8.AD.35 |
| Dana classification | 38.4.9.6 |
| Crystal system | Tetragonal |
| Crystal class | Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m) |
| Space group | I41/amd |
| Identification | |
| Color | Light pink, brown |
| Crystal habit | Prismatic crystals |
| Cleavage | None Observed, possible {100} |
| Fracture | Irregular |
| Tenacity | brittle |
| Mohs scale hardness | 4 |
| Luster | Adamantine |
| Streak | white |
| Diaphaneity | Transparent, Translucent |
| Specific gravity | 4.703 (calculated) |
| Optical properties | Uniaxial (+) |
| References | |
Wakefieldite-(La) is the lanthanum endpoint of Wakefieldite with the ideal formula LaVO4. As a vanadate in the tetragonal crystal system, the rare-earth mineral is a member of the xenotime group.
Wakefieldite-(La) was first described in 2008 for an occurrence in the Glücksstern mine, Gottlob Hill, Friedrichroda, Thuringia, Germany. Similar to other rare-earth minerals, the type material contained considerable parts of other rare earth elements, namely neodymium, praseodymium, samarium and yttrium.