Mineralogy Database

Fiedlerite Mineral Data

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General Fiedlerite Information

Help on Chemical  Formula: Chemical Formula: Pb3Cl4F(OH)2
Help on Composition: Composition: Molecular Weight = 816.42 gm
   Hydrogen   0.25 %  H     2.21 % H2O
   Lead      76.14 %  Pb   82.02 % PbO
   Chlorine  17.37 %  Cl   17.37 % Cl
               -   %   Cl   -3.92 % -O=Cl2   
   Oxygen     3.92 %  O
   Fluorine   2.33 %  F     2.33 % F
               -   %   F    -0.98 % -O=F2    
            ______        ______ 
            100.00 %       99.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb3Cl4F(OH)2
Help on Environment: Environment: Secondary mineral from smelting activities.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1887
Help on Locality: Locality: Ancient lead slags at Laurium, Greece. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for K.G. Fiedler, superintendant of the Laurion mines.
Help on Name Pronunciation: Name Pronunciation: Fiedlerite + Pronunciation Say FIEDLERITE
 

Fiedlerite Image

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  Fiedlerite

Comments: Clear tabular crystals of fiedlerite on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Fiedlerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0657:1:0.9044
Help on Cell Dimensions: Cell Dimensions: a = 8.574, b = 8.045, c = 7.276, Z = 2; alpha = 89.96°, beta = 102.05°, gamma = 103.45° V = 477.36 Den(Calc)= 5.68
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): 2.55(1), 3.89(1), 2.81(0.8),
Help on Forms: Forms:

Mouse
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RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

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I - Indicies
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F - Fit to Screen
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Help on Above

Forms: ( 2 1 0) ( 2 0 1) ( 2 1 1) ( 3 1 0) ( 1 1 1) ( 1 0 0) ( 0 0 1)

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Physical Properties of Fiedlerite

Help on Cleavage: Cleavage: {001} Distinct, {100} Distinct
Help on Color: Color: Colorless, White.
Help on Density: Density: 5.88
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white
 

Optical Properties of Fiedlerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.059 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1828,KPDmeas= 0.1769,KC= 0.1726
Ncalc = 1.98 - 2.01
Help on Optical Data: Optical Data: Biaxial (-), a=1.98, b=2.04, g=2.1, bire=0.1200
 

Calculated Properties of Fiedlerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.91 gm/cc
note: Specific Gravity of Fiedlerite =5.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEFiedlerite =1,400.49 barns/electron
U=PEFiedlerite x rElectron Density=6,878.99 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Fiedlerite is Not Radioactive
 

Fiedlerite Classification

Help on  Dana Class: Dana Class: 10.03.02.01 (10)Oxyhalides and Hydroxyhalides
  (10.03)where (A)3 (O,OH)2 Xq
  (10.03.02)Dana Group
 
10.03.02.01 Fiedlerite Pb3Cl4F(OH)2 P1 1
Help on  Strunz Class: Strunz Class: 03.DC.10 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DC -With Pb (As,Sb,Bi), without Cu
 
03.DC.10 Fiedlerite Pb3Cl4F(OH)2 P1 1
 

Other Fiedlerite Information

Help on References: References: NAME( Ford32) 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 Fiedlerite :
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

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Fiedlerite

Pb3Cl4F(OH)2
Dana No: 10.03.02.01 Strunz No: 03.DC.10
Locality:

 

Notes:

 

 
   
 


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