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Xenotime-(Yb)

A valid IMA mineral species
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About Xenotime-(Yb)Hide

Formula:
Yb(PO4)
Colour:
Colourless to yellow, light brown
Lustre:
Vitreous
Specific Gravity:
5.85 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named after its composition and relationship with xenotime-(Y). The suffix/modifier follows the Levinson rule for minerals with essential REE, indicating a predominance of ytterbium.

Unique IdentifiersHide

Mindat ID:
7374
Long-form identifier:
mindat:1:1:7374:1
GUID
(UUID V4):
5412d298-2498-4f05-8cb4-348c1555e74f

IMA Classification of Xenotime-(Yb)Hide

Classification of Xenotime-(Yb)Hide

8.AD.35

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
Xtm-YbIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
XtmSiivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
XtmWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
XntThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Xenotime-(Yb)Hide

Vitreous
Transparency:
Transparent
Colour:
Colourless to yellow, light brown
Streak:
white
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.85 g/cm3 (Calculated)
Comment:
Could not be measured due to small grain size.

Optical Data of Xenotime-(Yb)Hide

Type:
Uniaxial (+)
RI values:
nω = 1.715(3) nε = 1.802(5)
Max Birefringence:
δ = 0.087
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Non-pleochroic

Chemistry of Xenotime-(Yb)Hide

Mindat Formula:
Yb(PO4)

Crystallography of Xenotime-(Yb)Hide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Setting:
I41/amd
Cell Parameters:
a = 6.866(2) Å, c = 6.004(3) Å
Ratio:
a:c = 1 : 0.874
Unit Cell V:
283.04 ų (Calculated from Unit Cell)
Z:
4
Morphology:
isolated ~20 μm grains and in aggregates to 50 μm.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0001712Xenotime-(Yb)Ni Y, Hughes J M, Mariano A N (1995) Crystal chemistry of the monazite and xenotime structures Yb(PO4) American Mineralogist 80 21-2619950293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.437 Å(100)
2.556 Å(80)
4.515 Å(70)
1.760 Å(50)
2.730 Å(30)
2.138 Å(30)
2.430 Å(20)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
26 : Hadean detrital minerals
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
35 : Ultra-alkali and agpaitic igneous rocks

Type Occurrence of Xenotime-(Yb)Hide

General Appearance of Type Material:
Granular aggregates <= 50 µm across and as isolated small (~20 µm) grains encased in clots of ferrian muscovite.
Place of Conservation of Type Material:
R.B. Ferguson Museum of Mineralogy, Department of Geological Sciences, University of Manitoba (M699S - M7001) and Department of Earth Sciences, Royal Ontario Museum, Toronto, Canada.
Geological Setting of Type Material:
Niobium-yttrium-fluorine (NYF) family of rare-element granitic pegmatite.
Associated Minerals at Type Locality:
Reference:
Buck, H.M., Cooper, M.A., Černý, P., Grice, J.D., Hawthorne, F.C. (1999) Xenotime-(Yb), YbPO4, a new mineral from the Shatford Lake pegmatite group, southeastern Manitoba, Canada. The Canadian Mineralogist: 37: 1303-1306.

Synonyms of Xenotime-(Yb)Hide

Other Language Names for Xenotime-(Yb)Hide

Relationship of Xenotime-(Yb) to other SpeciesHide

Member of:
Other Members of this group:
Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
PretuliteSc(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Wakefieldite-(La)La(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Wakefieldite-(Nd)Nd(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Wakefieldite-(Y)Y(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Xenotime-(Gd)Gd(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Xenotime-(Yb) associated with Monazite-(Ce)Ce(PO4)
2 photos of Xenotime-(Yb) associated with MuscoviteKAl2(AlSi3O10)(OH)2
1 photo of Xenotime-(Yb) associated with UraniniteUO2
1 photo of Xenotime-(Yb) associated with UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
1 photo of Xenotime-(Yb) associated with Hafnian Zircon(Zr,Hf)SiO4

Related Minerals - Strunz-mindat GroupingHide

8.AD.KepleriteCa9(Ca0.50.5)Mg(PO4)7Trig. 3m : R3c
8.AD.DeynekoiteCa9◻Fe3+(PO4)7Trig. 3m : R3c
8.AD.MazoriteBa3(PO4)2Trig. 3m (3 2/m) : R3m
8.AD.Monazite-(Gd)Gd(PO4)Mon.
8.AD.05NahpoiteNa2(PO3OH)Mon. 2/m : P21/m
8.AD.10MonetiteCa(PO3OH)Tric. 1
8.AD.10WeiliteCa(HAsO4)Tric. 1 : P1
8.AD.10ŠvenekiteCa(H2AsO4)2Tric. 1 : P1
8.AD.15Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
8.AD.15BiphosphammiteNH4(H2PO4)Tet. 4 2 2 : I41 2 2
8.AD.20Phosphammite(NH4)2(PO3OH)Mon. 2/m : P21/b
8.AD.25BuchwalditeNaCa(PO4)Orth. mm2 : Pmn21
8.AD.30SchultenitePb(HAsO4)Mon. 2/m : P2/b
8.AD.35Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Y)Y(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Chernovite-(Ce)(Ce,Y)(AsO4)Tet.
8.AD.35PretuliteSc(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(La)La(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Nd)Nd(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Xenotime-(Gd)Gd(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.40PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
8.AD.45XimengiteBi(PO4)Trig. 3 2 : P31 2 1
8.AD.50Gasparite-(Ce)Ce(AsO4)Mon. 2/m
8.AD.50Monazite-(Ce)Ce(PO4)Mon. 2/m
8.AD.50Monazite-(La)La(PO4)Mon. 2/m
8.AD.50Monazite-(Nd)Nd(PO4)Mon. 2/m
8.AD.50RooseveltiteBi(AsO4)Mon. 2/m
8.AD.50CheraliteCaTh(PO4)2Mon. 2/m
8.AD.50Monazite-(Sm)Sm(PO4)Mon. 2/m
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.50Gasparite-(La)La(AsO4)Mon. 2/m
8.AD.55TetrarooseveltiteBi(AsO4)Tet. 4/m : I41/a
8.AD.60Chursinite[Hg2]2+Hg2+2[AsO4]2Mon. 2/m : P21/b
8.AD.65ClinobisvaniteBi(VO4)Mon. 2/m
8.AD.70GurimiteBa3(VO4)2Trig. 3m : R3m
8.AD.75PicaiteNaCa[AsO3OH][AsO2(OH)2]Mon. 2/m : P21/b

Other InformationHide

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

Internet Links for Xenotime-(Yb)Hide

References for Xenotime-(Yb)Hide

Localities for Xenotime-(Yb)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Canada (TL)
 
  • Manitoba
    • Lac-du-Bonnet area
      • Shatford Lake
Buck et al. (1999)
Norway
 
  • Nordland
    • Hamarøy
      • Finnøya
Husdal (2008)
Russia
 
  • Murmansk Oblast
    • Lovozersky District
      • Keivy Mountains
        • Western Keivy Massif
A.V. Voloshin data
  • Zabaykalsky Krai
    • Kalarsky District
E. V. Sklyarov et al. (2016)
USA
 
  • Texas
    • Burnet County
Self-Collected by Franklin Roberts
 
矿物 and/or 产地  
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