Wakefieldite-(La) Explained

Wakefieldite-(La)
Category:Rare-earth mineral
Formula:
Imasymbol:Wf-La[1]
Strunz:8.AD.35
Dana:38.4.9.6
System:Tetragonal
Class:Ditetragonal dipyramidal (4/mmm)
H-M symbol: (4/m 2/m 2/m)
Symmetry:I41/amd
Color:Light pink, brown
Habit:Prismatic crystals
Cleavage:None Observed, possible
Fracture:Irregular
Tenacity:brittle
Mohs:4
Luster:Adamantine
Streak:white
Diaphaneity:Transparent, Translucent
Gravity:4.703 (calculated)
Opticalprop:Uniaxial (+)

Wakefieldite-(La) is the lanthanum endpoint of Wakefieldite with the ideal formula . 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.[2] Similar to other rare-earth minerals, the type material contained considerable parts of other rare earth elements, namely neodymium, praseodymium, samarium and yttrium.[3]

Notes and References

  1. Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
  2. Webmineral data, Wakefieldite-(La).
  3. Witzke T, Kolitsch U, Warnsloh JM, Göske J . 2008-12-15 . Wakefieldite-(La), LaVO4, a new mineral species from the Glucksstern Mine, Friedrichroda, Thuringia, Germany . European Journal of Mineralogy . 20 . 6 . 1135-1139 . 10.1127/0935-1221/2009/0021-1875 . 2025-01-05.