Weilerite Mineral Data

Weilerite Mineral Data
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General Weilerite Information

Help on Chemical Formula: Chemical Formula: BaAl3H[(As,P)O4]2(OH)6
Help on Composition: Composition: Molecular Weight = 577.19 gm
   Barium      23.79 %  Ba   26.56 % BaO
   Aluminum    14.02 %  Al   26.50 % Al2O3
   Arsenic     19.47 %  As   29.87 % As2O5
   Phosphorus   2.68 %  P     6.15 % P2O5
   Hydrogen     1.22 %  H    10.92 % H2O
   Oxygen      38.81 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaAl3H(AsO4)1.5(PO4)0.5(OH)6
Help on Environment: Environment: Redefined in 1987.
Help on IMA Status: IMA Status: Approved IMA 1961
Help on Locality: Locality: Weiler and Neubulach, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

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Weilerite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.44444
Help on Cell Dimensions: Cell Dimensions: a = 7.11, c = 17.38, Z = 3; V = 760.89 Den(Calc)= 3.78
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.01(1), 5.8(0.8), 3.54(0.7),
 

Physical Properties of Weilerite

Help on Color: Color: White.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Weilerite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1833,KC= 0.1856
Ncalc = 1.7
Help on Optical Data: Optical Data: Uniaxial (-), e=1.688, w=1.698, bire=0.0100.
 

Calculated Properties of Weilerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.55 gm/cc
note: Specific Gravity of Weilerite =3.78 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEWeilerite = 115.58 barns/electron
U=PEWeilerite x rElectron Density= 410.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Weilerite is Not Radioactive
 

Weilerite Classification
Help on Dana Class: Dana Class: 43.04.01.09 (43)Compound Phosphates, etc.
  (43.04)(Anhydrous Compound Anions With Hydroxyl or Halogen)
  (43.04.01)Beudantite Group
 
43.04.01.01 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.02 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m
 
43.04.01.03 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.04 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m
 
43.04.01.05 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.06 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.07 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.08 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
 
43.04.01.09 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m
 
43.04.01.10 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m
Help on Strunz Class: Strunz Class: 08.BL.05 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BL -With medium-sized and large cations, (OH, etc.):RO4 = 3:1
 
08.BL.05 Beudantite PbFe3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
08.BL.05 Corkite PbFe3(PO4)(SO4)(OH)6 R 3m 3m
 
08.BL.05 Hidalgoite PbAl3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
08.BL.05 Gallobeudantite! PbGa3[(AsO4),(SO4)]2(OH)6 R 3m 3m
 
08.BL.05 Hinsdalite (Pb,Sr)Al3(PO4)(SO4)(OH)6 R 3m 3 2/m
 
08.BL.05 Kemmlitzite (Sr,Ce)Al3(AsO4)(SO4)(OH)6 R 3m 3 2/m
 
08.BL.05 Orpheite PbAl3(PO4,SO4)2(OH)6(?) R 3m 3 2/m
 
08.BL.05 Woodhouseite CaAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
 
08.BL.05 Weilerite BaAl3H[(As,P)O4]2(OH)6 R 3m 3 2/m
 
08.BL.05 Svanbergite SrAl3(PO4)(SO4)(OH)6 R 3m 3 2/m
 

Other Weilerite Information
Help on References: References: NAME( Dana8) 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 Weilerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - WWW-MINCRYST

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Weilerite

BaAl3H[(As,P)O4]2(OH)6
Dana No: 43.04.01.09 Strunz No: 08.BL.05
Locality:

 

Notes: