Mineralogy Database

Diaboleite Mineral Data

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General Diaboleite Information

Help on Chemical  Formula: Chemical Formula: Pb2CuCl2(OH)4
Help on Composition: Composition: Molecular Weight = 616.88 gm
   Copper    10.30 %  Cu   11.60 % Cu2O
   Hydrogen   0.65 %  H     5.84 % H2O
   Lead      67.18 %  Pb   72.36 % PbO
   Chlorine  11.49 %  Cl   11.49 % Cl
               -   %   Cl   -2.59 % -O=Cl2   
   Oxygen    10.37 %  O
            ______        ______ 
            100.00 %       98.70 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 2(Pb)2(OH)2CuCl2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1923
Help on Locality: Locality: Higher Pitts, Mendip Hills, Somersetshire, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek dia, "difference" and the mineral Boleite.
Help on Name Pronunciation: Name Pronunciation: Diaboleite + Pronunciation Say DIABOLEITE

Diaboleite Image

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Comments: Coarsely crystalline, blue diaboleite.
Location: Mammoth Mine, Tiger, Arizona. USA. Scale: 2.8 x 2.5 cm.
© John Veevaert

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  Yedlinite   Diaboleite

Comments: Minute cranberry-colored rounded yedlinite crystal with blue diaboleite on yellow-brown wulfenite.
Location: Mammoth Mine, Tiger, Pinal County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Diaboleite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.93594
Help on Cell Dimensions: Cell Dimensions: a = 5.87, c = 5.494, Z = 1; V = 189.31 Den(Calc)= 5.41
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Pyramidal H-M Symbol (4mm) Space Group: P 4mm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.292(1), 3.314(1), 5.507(1),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 10) ( 1 1 1) ( 1 0 0) ( 0 0 1)

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Physical Properties of Diaboleite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Dark blue, Bright sky blue.
Help on Density: Density: 5.48 - 6.41, Average = 5.94
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Adamantine
Help on Streak: Streak: blue

Optical Properties of Diaboleite

Help on Dichroism (e): Dichroism (e): pale blue or pale bluish white.
Help on Dichroism (w): Dichroism (w): deep blue or deep blue.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.143 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.058 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1691,KPDmeas= 0.1539,KC= 0.1796
Ncalc = 1.97 - 2.15
Help on Optical Data: Optical Data: Uniaxial (-), e=1.85, w=1.98, bire=0.1300.

Calculated Properties of Diaboleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.61 gm/cc
note: Specific Gravity of Diaboleite =5.41 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.14
Boson Index = 0.86
Help on Photoelectric: Photoelectric: PEDiaboleite =1,215.36 barns/electron
U=PEDiaboleite x rElectron Density=5,606.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Diaboleite is Not Radioactive

Diaboleite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.06)where Am Bn (O,OH)p Xq
  (10.06.01)Dana Group Diaboleite Pb2CuCl2(OH)4 P 4mm 4mm
Help on  Strunz Class: Strunz Class: 03.DB.05 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DB -With Pb, Cu, etc.
03.DB.05 Diaboleite Pb2CuCl2(OH)4 P 4mm 4mm

Other Diaboleite Information

Help on References: References: NAME( Duda&Rejl90) 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 Diaboleite :
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 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 03.DB.05





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