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Wolfeite

A valid IMA mineral species - grandfathered
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About WolfeiteHide

05163060014946926027110.jpg
Caleb Wroe Wolfe
Formula:
Fe2+2(PO4)(OH)
Colour:
Red-brown to dark brown, green (rare); light brown in transmitted light.
Lustre:
Sub-Adamantine, Sub-Vitreous, Resinous, Greasy
Hardness:
4½ - 5
Specific Gravity:
3.79 - 3.82
Crystal System:
Monoclinic
Member of:
Name:
Named in 1949 by Clifford Frondel in honor of Dr. Caleb Wroe Wolfe ( October 22, 1908- July 17, 1980), American crystallographer and Professor of Geology, Boston University, Boston, Massachusetts, USA who was also a systematic mineralogist interested in granite pegmatite phosphates.
The mineral wroewolfeite is also named after him.

Unique IdentifiersHide

Mindat ID:
4304
Long-form identifier:
mindat:1:1:4304:1
GUID
(UUID V4):
2dc05b97-3519-4ca9-9a3b-546f1084bcab

Classification of WolfeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.BB.15

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
41.6.3.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
19.12.12

19 : Phosphates
12 : Phosphates of Mn

Mineral SymbolsHide

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

SymbolSourceReference
WolIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of WolfeiteHide

Sub-Adamantine, Sub-Vitreous, Resinous, Greasy
Transparency:
Transparent, Translucent
Colour:
Red-brown to dark brown, green (rare); light brown in transmitted light.
Streak:
White, off-white.
Hardness:
4½ - 5 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
On {010}, good; on {120}, fair; on {110}, very poor.
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.79 - 3.82 g/cm3 (Measured)    3.88 g/cm3 (Calculated)
Comment:
Density value of 3.83 estimated for the pure Fe2+ end member.

Optical Data of WolfeiteHide

Type:
Biaxial (+)
RI values:
nα = 1.741 - 1.750 nβ = 1.742 - 1.750 nγ = 1.746 - 1.759
2V:
Measured: 51°
Birefringence:
0.005
Max Birefringence:
δ = 0.005 - 0.009
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
strong
Pleochroism:
Weak
Comments:
Faintly pleochroic in thick grains.

Chemical Properties of WolfeiteHide

Formula:
Fe2+2(PO4)(OH)

Crystallography of WolfeiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 12.20 Å, b = 13.17 Å, c = 9.79 Å
β = 108°
Ratio:
a:b:c = 0.926 : 1 : 0.743
Unit Cell V:
1,496.01 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Almost always massive, rare crystals prismatic [001], with the prism zone striated vertically.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0010339WolfeiteHatert F (2007) Fe2(PO4)(OH), a synthetic analogue of wolfeite Acta Crystallographica C63 i119-i1212007synthetic2.5293
0010412WolfeiteKolitsch U (2003) Mg-rich wolfeite, (Fe,Mg)2(PO4)(OH): structure refinement and Raman spectroscopic data Acta Crystallographica E59 i125-i1282003Big Fish River area, Yukon Territory, Canada0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.649 Å(25)
3.381 Å(20)
3.191 Å(80)
3.098 Å(100)
2.929 Å(70)
2.881 Å(30)
2.817 Å(60)
Comments:
Hagendorf, Germany

Geological EnvironmentHide

Paragenetic Mode(s):
Geological Setting:
Granitic pegmatites.

Type Occurrence of WolfeiteHide

Geological Setting of Type Material:
Granitic pegmatite.
Associated Minerals at Type Locality:

Other Language Names for WolfeiteHide

Relationship of Wolfeite to other SpeciesHide

Member of:
Other Members of this group:
TripliteMn2+2(PO4)FMon. 2/m
TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
11 photos of Wolfeite associated with TriphyliteLiFe2+PO4
3 photos of Wolfeite associated with HagendorfiteNaCaMn2+Fe2+2(PO4)3
3 photos of Wolfeite associated with SideriteFeCO3
3 photos of Wolfeite associated with LudlamiteFe2+3(PO4)2 · 4H2O
2 photos of Wolfeite associated with ChalcopyriteCuFeS2
1 photo of Wolfeite associated with Kryzhanovskite(Fe3+,Mn2+)3(PO4)2(OH,H2O)3
1 photo of Wolfeite associated with PyriteFeS2
1 photo of Wolfeite associated with AugeliteAl2(PO4)(OH)3
1 photo of Wolfeite associated with ScorzaliteFe2+Al2(PO4)2(OH)2
1 photo of Wolfeite associated with RockbridgeiteFe2+Fe3+4(PO4)3(OH)5

Related Minerals - Strunz-mindat GroupingHide

8.BB.TilasiteCaMg(AsO4)FMon.
8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.MoabiteNiFe3+(PO4)OOrth. mmm (2/m 2/m 2/m) : Pnma
8.BB.KarlditmariteCu9O4(PO4)2(SO4)2Tric. 1 : P1
8.BB.MilkovoiteCu4O(PO4)(AsO4)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BB.PaulgrothiteCu9Fe3+O4(PO4)4Cl3Orth. mm2 : Cmc21
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.10TripliteMn2+2(PO4)FMon. 2/m
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/b
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15Wagnerite(Mg,Fe2+)2(PO4)FMon. 2/m : P21/b
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/b
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15Unnamed (Sb-analogue of Auriacusite)Fe3+Cu2+[(Sb,As)O4]O
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P3 1m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m (3 2/m) : P3 1m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm (2/m 2/m 2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon. 2/m : P21/m
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon. 2/m : P21/m
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.45YaroshevskiteCu9O2(VO4)4Cl2 Tric. 1 : P1
8.BB.45DokuchaeviteCu8O2(VO4)3Cl3Tric. 1 : P1
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.50Aleutite[Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)ClMon. 2/m : B2/m
8.BB.52aEriclaxmaniteCu4O(AsO4)2Tric. 1 : P1
8.BB.52bKozyrevskiteCu4O(AsO4)2Orth. mmm (2/m 2/m 2/m) : Pnma
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex. 6mm : P63mc
8.BB.55PopoviteCu5O2(AsO4)2Tric. 1 : P1
8.BB.60UrusoviteCuAl(AsO4)OMon. 2/m : P21/b
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth. mmm (2/m 2/m 2/m) : Pmma
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon. 2/m
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig. 3 : P3
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet. 4 2 2 : P41 21 2
8.BB.90RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 4 2 2 : P43 21 2

Fluorescence of WolfeiteHide

Not fluorescent in UV

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 WolfeiteHide

References for WolfeiteHide

Reference List:

Localities for WolfeiteHide

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.
Argentina
 
  • CĂłrdoba Province
  • La Rioja Province
    • General Ángel V. Peñaloza Department
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Thackaringa District
  • Victoria
    • East Gippsland Shire
      • Omeo
          • Dorchap Dyke Swarm
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
    • GalilĂ©ia
      • Laranjeiras
Canada
 
  • Yukon
    • Dawson mining district
China
 
  • Fujian
    • Nanping
      • Yanping District
        • Nanping pegmatite field
Czech Republic
 
  • Plzeƈ Region
    • DomaĆŸlice District
      • Otov
  • Vysočina Region
    • ĆœÄĂĄr nad SĂĄzavou District
      • Bory
        • HornĂ­ Bory
          • Cyrilov (Cyrillhof)
Finland
 
  • South Ostrobothnia
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Bellac
        • RazĂšs
          • Chanteloube
            • Vilatte Quarries (La Vilate)
Germany
 
  • Bavaria
    • Lower Bavaria
      • Regen District
        • Zwiesel
          • Rabenstein
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Pleystein
        • Waidhaus
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
  • Sardinia
    • Nuoro Province
      • Orotelli
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • Trento Province (Trentino)
      • Rabbi
        • CeresĂš
Poland
 
  • Lower Silesian Voivodeship
    • ƚwidnica County
      • Gmina ƚwidnica
Portugal
 
  • Castelo Branco
    • CovilhĂŁ
  • Viana do Castelo
    • Ponte da Barca
      • Touvedo (SĂŁo Lourenço e Salvador)
Romania
 
  • Maramureș County
    • TĂąrgu Lăpuș
  • Sibiu County
    • Lotru-Cibin Mountains
South Africa
 
  • Northern Cape
    • Namakwa District Municipality
      • KhĂąi-Ma Local Municipality
        • Aggeneys
Spain
 
  • Castile and Leon
    • Salamanca
      • Garcirrey
  • Catalonia
    • Girona
      • CadaquĂ©s
Sweden
 
  • JĂ€mtland County
    • BrĂ€cke
  • Östergötland County
    • Motala
      • GodegĂ„rd
  • Stockholm County
    • Haninge
      • Norrö
    • Sigtuna
      • Arlanda
  • VĂ€sternorrland County
    • SollefteĂ„
USA
 
  • Maine
    • Oxford County
      • Newry
  • New Hampshire
    • Cheshire County
      • Walpole
    • Grafton County
      • Groton
      • Orange
  • South Dakota
    • Custer County
      • Custer Mining District
        • Custer
    • Pennington County
      • Keystone Mining District
        • Glendale
 
Mineral and/or Locality  
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