Wakefieldite-(La)
Appearance
Wakefieldite-(La) | |
---|---|
![]() 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) (LaVO4) is the lanthanum analogue of the uncommon rare-earth element vanadate mineral Wakefieldite. It 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.[3]
References
- ^ 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).