Wyllieite Mineral Data + Say WYLLIEITE


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General Wyllieite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca,Mn++)(Mn++,Fe++)(Fe++,Fe+++,Mg)Al(PO4)3
Help on Composition: Composition: Molecular Weight = 451.11 gm
   Sodium       3.06 %  Na    4.12 % Na2O
   Calcium      2.67 %  Ca    3.73 % CaO
   Magnesium    0.54 %  Mg    0.89 % MgO
   Manganese    9.74 %  Mn   12.58 % MnO
   Aluminum     5.98 %  Al   11.30 % Al2O3
   Iron        14.86 %  Fe   14.33 % FeO /  5.31 % Fe2O3
   Phosphorus  20.60 %  P    47.20 % P2O5
   Oxygen      42.56 %  O
              ______        ______ 
              100.00 %       99.47 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.6Ca0.3Mn2+0.8Fe2+0.9Fe3+0.3Mg0.1Al(PO4)3
Help on Environment: Environment: In zoned complex granite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Old Mike mine, 6 km north-northwest for Custer, Custer County, South Dakota, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Peter John Wyllie (1930-), Professor of Petrology and Geochemistry, University of Chicago, Chicago, Illinois, USA.
Help on Synonym: Synonym: ICSD 6203
  PDF 39-409
 

Wyllieite Image

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Wyllieite

Comments: Dark bluish-black massive wyllieite in pegmatite.
Location: Victory Mine, Custer, Custer County, South Dakota, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Wyllieite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9584:1:0.5131
Help on Cell Dimensions: Cell Dimensions: a = 11.868, b = 12.382, c = 6.354, Z = 4; beta = 114.52° V = 849.51 Den(Calc)= 3.53
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.674(1), 2.693(1), 6.15(0.6),
Click Here for Large Wyllieite Structure Window Crystal Structure:

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Help on Above


Moore P B , Molin-Case J , American Mineralogist , 59 (1974) p.280-290, Contribution to pegmatite phosphate giant crystal paragenesis: II. The crystal, chemistry of wyllieite, Na2Fe2Al[PO4]3, a primary phase

 

Physical Properties of Wyllieite

Help on Cleavage: Cleavage: None
Help on Color: Color: Bluish green, Greenish black, Gray green, Dark green.
Help on Density: Density: 3.601
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous - Metallic
Help on Streak: Streak: olive green
 

Optical Properties of Wyllieite

Help on Optical Data: Optical Data: Biaxial (+), a=1.688, b=1.691, g=1.696, bire=0.0080, 2V(Calc)=76, 2V(Meas)=50.
 

Calculated Properties of Wyllieite

Help on Electron Density: Electron Density:

relectron=3.43 gm/cc
note: rWyllieite =3.53 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00392
Boson Index = 0.99608
Help on Photoelectric: Photoelectric:

PEWyllieite = 8.49 barns/electron
U=PEWyllieite x relectron= 29.11 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Wyllieite is Not Radioactive

 

Wyllieite Classification

Help on  Dana Class: Dana Class: 38.2.4.2 (38)Anhydrous Phosphates, etc
  (38.2)(A+ B++)5 (XO4)3
  (38.2.4)Alluaudite-Wyllieite Group (Wyllieite Subgroup)
 
38.2.4.1 Ferrowyllieite (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
38.2.4.2 Wyllieite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
38.2.4.3 Rosemaryite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
38.2.4.4 Qingheiite Na2(Mn,Mg,Fe)(Al,Fe)(PO4)3 P 21/n 2/m
 
38.2.4.5 Bobfergusonite Na2Mn5FeAl(PO4)6 P 21/n 2/m
 
38.2.4.6 Bradaczekite! NaCu4(AsO4)3 C 2/c 2/m
 
38.2.4.7 Ferrorosemaryite! []NaFeFeAl(PO4)3 P 21/n 2/m
Help on  Strunz Class: Strunz Class: VII/A.06-40 VII - Phosphates, Arsenates and Vanadates
  VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of medium and big size: Mg, Mn,Fe, Cu, Zn, and Ca, Na
  VII/A.06 - Alluaudite- Hagendorfite group
 
VII/A.06-10 Qingheiite Na2(Mn,Mg,Fe)(Al,Fe)(PO4)3 P 21/n 2/m
 
VII/A.06-20 Bobfergusonite Na2Mn5FeAl(PO4)6 P 21/n 2/m
 
VII/A.06-30 Ferrowyllieite (Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
VII/A.06-40 Wyllieite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
VII/A.06-50 Rosemaryite (Na,Ca,Mn)(Mn,Fe)(Fe,Fe,Mg)Al(PO4)3 P 21/n 2/m
 
VII/A.06-60 Ferroalluaudite NaCaFe(Fe,Mn,Fe,Mg)2(PO4)3 C 2/a 2/m
 
VII/A.06-70 Alluaudite NaCaFe(Mn,Fe,Fe,Mg)2(PO4)3 C 2/c 2/m
 
VII/A.06-80 Maghagendorfite NaMgMn(Fe,Fe)2(PO4)3 I 21/a 2/m
 
VII/A.06-85 Ferrohagendorfite* (Na,Ca)2Fe(Fe,Fe)2(PO4)3 I 21/a 2/m
 
VII/A.06-90 Hagendorfite NaCaMn(Fe,Fe,Mg)2(PO4)3 I 21/a 2/m
 
VII/A.06-100 Varulite NaCaMn(Mn,Fe,Fe)2(PO4)3 C 2/c 2/m
 
VII/A.06-110 Arseniopleite (Ca,Na)(Na,Pb)Mn(Mn,Mg,Fe)2(AsO4)3 I2/a 2/m
 
VII/A.06-120 Caryinite (Na,Pb)(Ca,Na)(Ca,Mn)(Mn,Mg)2(AsO4)3 I2/c 2/m
 

Other Wyllieite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Wyllieite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Wyllieite

(Na,Ca,Mn++)(Mn++,Fe++)(Fe++,Fe+++,Mg)Al(PO4)3
Dana No: 38.2.4.2 Strunz No: VII/A.06-40
Locality:

 

Notes:

 

 
   
 
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