Wakefieldite-(La) (LaVO4) is the lanthanum analogue of the uncommon rare-earth element vanadate mineral Wakefieldite. It is a member of the xenotime group.
| Wakefieldite-(La) | |
|---|---|
_,_Hausmannite_-_Grube_Gl%C3%BCcksstern,_Gottlob,_Th%C3%BCringen.jpg) Wakefieldite-(La) on hausmannite | |
| General | |
| Category | Rare-earth mineral |
| Formula (repeating unit) | (LaVO4) |
| IMA symbol | Wf-La[1] |
| 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 | [2] |
Wakefieldite-(La) was first described in 2008 for an occurrence in the Glücksstern mine, Gottlob Hill, Friedrichroda, Thuringia, Germany.[3]
References
edit- ^ 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.
- ^ Wakefieldite-(La), Mindat.org, retrieved 2 August 2022
- ^ Webmineral data, Wakefieldite-(La).
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