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Wilhelmvierlingite Mineral Data

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General Wilhelmvierlingite Information

Help on Chemical  Formula: Chemical Formula: CaMn++Fe+++(PO4)2(OH)•2(H2O)
Help on Composition: Composition: Molecular Weight = 393.84 gm
   Calcium     10.18 %  Ca   14.24 % CaO
   Manganese   13.95 %  Mn   18.01 % MnO
   Iron        14.18 %  Fe   20.27 % Fe2O3
   Phosphorus  15.73 %  P    36.04 % P2O5
   Hydrogen     1.28 %  H    11.44 % H2O
   Oxygen      44.69 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaMn2+Fe3+(PO4)2(OH)•2(H2O)
Help on Environment: Environment: Found with secondary phosphates in a pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Hagendorf pegmatite, Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for William Vierling (1901-1995), Weiden, Bavaria, Germany.
Help on Name Pronunciation: Name Pronunciation: Wilhelmvierlingite + Pronunciation Say WILHELMVIERLINGITE
 

Wilhelmvierlingite Image

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  Wilhelmvierlingite   Rockbridgeite

Comments: Yellow brown crystals wilhelmvierlingite with black rockbridgeite.
Location: Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Wilhelmvierlingite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8:1:0.3951
Help on Cell Dimensions: Cell Dimensions: a = 14.8, b = 18.5, c = 7.31, Z = 8; V = 2,001.48 Den(Calc)= 2.61
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P bca
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.86(1), 9.34(0.7), 5(0.6),
 

Physical Properties of Wilhelmvierlingite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Brownish yellow, Yellow.
Help on Density: Density: 2.58
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Wilhelmvierlingite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.1 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.087 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2545,KPDmeas= 0.2575,KC= 0.2341
Ncalc = 1.6 - 1.61
Help on Optical Data: Optical Data: Biaxial (-), a=1.637, b=1.664, g=1.692, bire=0.0550
Help on Pleochroism (x): Pleochroism (x): light yellow.
Help on Pleochroism (y): Pleochroism (y): light yellow.
Help on Pleochroism (z): Pleochroism (z): dark yellow.
 

Calculated Properties of Wilhelmvierlingite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.57 gm/cc
note: Specific Gravity of Wilhelmvierlingite =2.61 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0033599486
Boson Index = 0.9966400514
Help on Photoelectric: Photoelectric: PEWilhelmvierlingite = 9.74 barns/electron
U=PEWilhelmvierlingite x rElectron Density= 25.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wilhelmvierlingite is Not Radioactive
 

Wilhelmvierlingite Classification

Help on  Dana Class: Dana Class: 42.11.01.05 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.11)where (AB)4 (XO4)3 Zq � x(H2O)
  (42.11.01)Overite Group
 
42.11.01.01 Overite CaMgAl(PO4)2(OH)•4(H2O) Pcca 2/m 2/m 2/m
 
42.11.01.02 Segelerite CaMgFe(PO4)2(OH)•4(H2O) Pcca 2/m 2/m 2/m
 
42.11.01.03 Manganosegelerite (Mn,Ca)(Mn,Fe,Mg)Fe(PO4)2(OH)•4(H2O) P bca 2/m 2/m 2/m
 
42.11.01.04 Lunokite (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2(OH)•4(H2O) P bca 2/m 2/m 2/m
 
42.11.01.05 Wilhelmvierlingite CaMnFe(PO4)2(OH)•2(H2O) P bca 2/m 2/m 2/m
 
42.11.01.06 Kaluginite* (Mn,Ca)MgFe(PO4)2(OH)•4(H2O) C cca 2/m 2/m 2/m
 
42.11.01.07 Juonniite! CaMgSc(PO4)2(OH)•4(H2O) P bca 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.DH.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1
 
08.DH.20 Manganosegelerite (Mn,Ca)(Mn,Fe,Mg)Fe(PO4)2(OH)•4(H2O) P bca 2/m 2/m 2/m
 
08.DH.20 Juonniite! CaMgSc(PO4)2(OH)•4(H2O) P bca 2/m 2/m 2/m
 
08.DH.20 Overite CaMgAl(PO4)2(OH)•4(H2O) Pcca 2/m 2/m 2/m
 
08.DH.20 Segelerite CaMgFe(PO4)2(OH)•4(H2O) Pcca 2/m 2/m 2/m
 
08.DH.20 Wilhelmvierlingite CaMnFe(PO4)2(OH)•2(H2O) P bca 2/m 2/m 2/m
 

Other Wilhelmvierlingite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Wilhelmvierlingite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Print or Cut-and-Paste your Wilhelmvierlingite Specimen Label here :

Wilhelmvierlingite

CaMn++Fe+++(PO4)2(OH)•2(H2O)
Dana No: 42.11.01.05 Strunz No: 08.DH.20
Locality:

 

Notes:

 

 
   
 


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