Iranite Mineral Data

Iranite Mineral Data
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General Iranite Information

Help on Chemical Formula: Chemical Formula: Pb10Cu(CrO4)6(SiO4)2(F,OH)2
Help on Composition: Composition: Molecular Weight = 3,052.68 gm
   Chromium  10.22 %  Cr   19.65 % CrO3
   Copper     2.08 %  Cu    2.34 % Cu2O
   Silicon    1.84 %  Si    3.94 % SiO2
   Hydrogen   0.02 %  H     0.15 % H2O
   Lead      67.87 %  Pb   73.12 % PbO
   Oxygen    17.03 %  O
   Fluorine   0.93 %  F     0.93 % F
               -   %   F    -0.39 % -O=F2    
            ______        ______ 
            100.00 %       99.74 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb10Cu(CrO4)6(SiO4)2F1.5(OH)0.5
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Sebarz mine, NE of Anarak, Iran. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for the country.
Help on Name Pronunciation: Name Pronunciation: Iranite Say IRANITE
 

Iranite Image

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Iranite

Comments: Crystals of iranite to 3mm on brecciated, siliceous matrix.
Location: Sebarz mine, Anarak, Iran. Scale: 3.7 x 2.5 cm.
© John Veevaert

Iranite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0503:1:1.0366
Help on Cell Dimensions: Cell Dimensions: a = 10.02, b = 9.54, c = 9.89, Z = 1; alpha = 104.5°, beta = 66°, gamma = 108.5° V = 792.94 Den(Calc)= 6.39
Help on Crystal System: Crystal System: Triclinic - PedialH-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.28(1), 3.49(1), 3.6(1),
Click Here for Large Iranite Structure Window Crystal Structure:

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Yang H , Sano J L , Eichler C , Downs R T , Costin G , Acta Crystallographica, Section C , 63 (2007) p.i122-i124, Iranite, CuPb10(CrO4)6(SiO4)2(OH)2, isomorphous with hemihedrite, Locality: Chapacase mine, Sierra Cerillos district, Tocopilla, Chile

 

Physical Properties of Iranite

Help on Color: Color: Brownish yellow, Yellow, Honey brown.
Help on Density: Density: 5.8
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow
 

Optical Properties of Iranite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.31 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.216 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.216,KPDmeas= 0.2328,KC= 0.1777
Ncalc = 2.03 - 2.11
Help on Optical Data: Optical Data: Biaxial (?), a=2.25, g=2.4-2.5, bire=0.1500-0.2500
 

Calculated Properties of Iranite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.30 gm/cc
note: Specific Gravity of Iranite =6.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEIranite =1,231.83 barns/electron
U=PEIranite x rElectron Density=6,532.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Iranite is Not Radioactive
 

Iranite Classification
Help on Dana Class: Dana Class: 36.01.01.01 (36)Compound Chromates
  (36.01)with miscellaneous formulae
  (36.01.01)Dana Group
 
36.01.01.01 Iranite Pb10Cu(CrO4)6(SiO4)2(F,OH)2 P1 1
 
36.01.01.02 Hemihedrite Pb10Zn(CrO4)6(SiO4)2F2 P1 1
Help on Strunz Class: Strunz Class: 07.FC.15 07 - SULFATES (SELENATES, TELLURATES)
  07.F - Chromates
  07.FC -With PO4, AsO4, SiO4
 
07.FC.15 Hemihedrite Pb10Zn(CrO4)6(SiO4)2F2 P1 1
 
07.FC.15 Iranite Pb10Cu(CrO4)6(SiO4)2(F,OH)2 P1 1
 

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

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Iranite

Pb10Cu(CrO4)6(SiO4)2(F,OH)2
Dana No: 36.01.01.01 Strunz No: 07.FC.15
Locality:

 

Notes: