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Laueite Mineral Data

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General Laueite Information

Help on Chemical  Formula: Chemical Formula: Mn++Fe+++2(PO4)2(OH)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 534.71 gm
   Manganese   10.27 %  Mn   13.27 % MnO
   Iron        20.89 %  Fe   29.87 % Fe2O3
   Phosphorus  11.59 %  P    26.55 % P2O5
   Hydrogen     3.39 %  H    30.32 % H2O
   Oxygen      53.86 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Fe3+2(PO4)2(OH)2•8(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1954
Help on Locality: Locality: Hagendorf, Waidhaus, Oberpfalz, Bayern (Bavaria), Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for M. F. T. Von Laue.
Help on Name Pronunciation: Name Pronunciation: Laueite Say LAUEITE
Help on Synonym: Synonym: ICSD 34808
  PDF 14-246
 

Laueite Image

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  Laueite

Comments: Purple crystal of laueite on matrix.
Location: Tip Top Mine, Custer County, South Dakota, USA. Scale: Crystal size 0.4 cm.
© John Veevaert

Laueite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4953:1:0.6697
Help on Cell Dimensions: Cell Dimensions: a = 5.28, b = 10.66, c = 7.14, Z = 1; alpha = 107.9°, beta = 110.9°, gamma = 71.12° V = 338.04 Den(Calc)= 2.63
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.91(1), 3.28(0.9), 4.95(0.8),
 

Physical Properties of Laueite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Yellow orange, Honey brown, Light brown.
Help on Density: Density: 2.44 - 2.49, Average = 2.46
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Laueite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.039 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.074 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2517,KPDmeas= 0.2614,KC= 0.2719
Ncalc = 1.66 - 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.588-1.603, b=1.654-1.659, g=1.68-1.682, bire=0.0790-0.0920, 2V(Calc)=62, 2V(Meas)=63-66.
 

Calculated Properties of Laueite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.48 gm/cc
note: Specific Gravity of Laueite =2.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0046920033
Boson Index = 0.9953079967
Help on Photoelectric: Photoelectric: PELaueite = 9.22 barns/electron
U=PELaueite x rElectron Density= 22.87 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Laueite is Not Radioactive
 

Laueite Classification

Help on  Dana Class: Dana Class: 42.11.10.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.11)where (AB)4 (XO4)3 Zq � x(H2O)
  (42.11.10)Laueite Group
 
42.11.10.01 Laueite MnFe2(PO4)2(OH)2•8(H2O) P1 1
 
42.11.10.02 Stewartite MnFe2(PO4)2(OH)2•8(H2O) P1 1
 
42.11.10.03 Pseudolaueite MnFe2(PO4)2(OH)2•7-8(H2O) P 21/a 2/m
 
42.11.10.04 Ushkovite MgFe2(PO4)2(OH)2•8(H2O) P1 1
 
42.11.10.05 Ferrolaueite! FeFe2(PO4)2(OH)2•8(H2O) Tri
Help on  Strunz Class: Strunz Class: 08.DC.30 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
 
08.DC.30 Gordonite MgAl2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Ferrolaueite! FeFe2(PO4)2(OH)2•8(H2O) Tri
 
08.DC.30 Mangangordonite (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Laueite MnFe2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Sigloite FeAl2(PO4)2(OH)3•5(H2O) P1 1
 
08.DC.30 Pseudolaueite MnFe2(PO4)2(OH)2•7-8(H2O) P 21/a 2/m
 
08.DC.30 Paravauxite FeAl2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Stewartite MnFe2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Ushkovite MgFe2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Kastningite! (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
 
08.DC.30 Maghrebite! MgAl2(AsO4)2(OH)2•8H2O P1 1
 

Other Laueite Information

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

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

Laueite

Mn++Fe+++2(PO4)2(OH)2•8(H2O)
Dana No: 42.11.10.01 Strunz No: 08.DC.30
Locality:

 

Notes:

 

 
   
 


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