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Wakefieldite-(La)

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Formula:
La(VO4)
System:
Tetragonal
Colour:
light pinkish to brown
Hardness:
4
Member of:
Name:
Lanthanum-dominant analogue of wakefieldite-(Ce) and wakefieldite-(Y)

Classification of Wakefieldite-(La)

Approved 2007
8.AD.35

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
38.4.9.6

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
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Type Occurrence of Wakefieldite-(La)

General Appearance of Type Material:
prismatic crystals up to 0.5mm in length
Associated Minerals at Type Locality:

Physical Properties of Wakefieldite-(La)

Adamantine
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
light pinkish to brown
Streak:
white
Hardness (Mohs):
4
Hardness Data:
Measured
Density:
4.703 g/cm3 (Calculated)

Crystallography of Wakefieldite-(La)

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Cell Parameters:
a = 7.406(4) Å, c = 6.504(8) Å
Ratio:
a:c = 1 : 0.878
Unit Cell Volume:
V 356.8 ų

Optical Data of Wakefieldite-(La)

Type:
Uniaxial (+)

Chemical Properties of Wakefieldite-(La)

Formula:
La(VO4)
Essential elements:
All elements listed in formula:

Relationship of Wakefieldite-(La) to other Species

Member of:
Other Members of Group:
8.AD.05NahpoiteNa2HPO4
8.AD.10MonetiteCa(HPO4)
8.AD.10WeiliteCa(HAsO4)
8.AD.10ŠvenekiteCa(H2AsO4)2
8.AD.15Archerite(K,NH4)(H2PO4)
8.AD.15Biphosphammite(NH4,K)(H2PO4)
8.AD.20Phosphammite(NH4)2(HPO4)
8.AD.25BuchwalditeNaCa(PO4)
8.AD.30SchultenitePb(HAsO4)
8.AD.35Chernovite-(Y)Y(AsO4)
8.AD.35DreyeriteBi(VO4)
8.AD.35Wakefieldite-(Ce)Ce(VO4)
8.AD.35Wakefieldite-(Y)Y(VO4)
8.AD.35Xenotime-(Y)Y(PO4)
8.AD.35PretuliteSc(PO4)
8.AD.35Xenotime-(Yb)(Yb,Y,HREE)(PO4)
8.AD.40PucheriteBi(VO4)
8.AD.45XimengiteBi(PO4)
8.AD.50Gasparite-(Ce)(Ce,REE)(AsO4)
8.AD.50Monazite-(Ce)(Ce,La,Nd,Th)(PO4)
8.AD.50Monazite-(La)(La,Ce,Nd)(PO4)
8.AD.50Monazite-(Nd)(Nd,La,Ce)(PO4)
8.AD.50RooseveltiteBi(AsO4)
8.AD.50Cheralite(Ca,Ce)(Th,Ce)(PO4)2
8.AD.50Monazite-(Sm)(Sm,Gd,Ce,Th)(PO4)
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.55TetrarooseveltiteBi(AsO4)
8.AD.60Chursinite(Hg2+)0.5Hg2+(AsO4)
8.AD.65ClinobisvaniteBi(VO4)

Other Names for Wakefieldite-(La)

Name in Other Languages:
Simplified Chinese:钒镧石

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Wakefieldite-(La)

Reference List:
Witzke, T., U. Kolitsch, J.M. Warnsloh & J. Göske (2008): Wakefieldite-(La), a new mineral species from the Glücksstern Mine, Friedrichroda, Thuringia, Germany. European J. Mineralogy 20, 1135-1139.

Internet Links for Wakefieldite-(La)

Localities for Wakefieldite-(La)

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Germany
 
  • Rhineland-Palatinate
    • Eifel
      • Mayen
        • Ettringen
          • Bellerberg volcano
Blass, G., (2010): Die neuen Mineralienfunde aus der Vulkaneifel, Mineralienwelt, Vol. 05, 2010
  • Thuringia
    • Thuringian Forest
      • Friedrichroda
        • Gottlob Hill
Witzke, T., U. Kolitsch, J.M. Warnsloh & J. Göske (2008): Wakefieldite-(La), a new mineral species from the Glücksstern Mine, Friedrichroda, Thuringia, Germany. European J. Mineralogy 20, 1135-1139.
Mineral and/or Locality  
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