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Zirklerite Mineral Data

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General Zirklerite Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Mg)9Al4Cl18(OH)12•14(H2O) (?)
Help on Composition: Composition: Molecular Weight = 1,634.03 gm
   Magnesium   3.35 %  Mg    5.55 % MgO
   Aluminum    6.60 %  Al   12.48 % Al2O3
   Iron       23.07 %  Fe   29.68 % FeO
   Hydrogen    2.47 %  H    22.05 % H2O
   Chlorine   39.05 %  Cl   39.05 % Cl
                -   %   Cl   -8.81 % -O=Cl2   
   Oxygen     25.46 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: 9(Fe2+0.75)9(Mg0.25)Al4Cl18(OH)12•14(H2O)
Help on Environment: Environment: Marine evaporite deposits. An incompletely characterized species.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1928
Help on Locality: Locality: Hope, Hanover, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Zirkler, director of the Aschersleben potash works, Germany.
Help on Name Pronunciation: Name Pronunciation: Zirklerite + Pronunciation Say ZIRKLERITE

Zirklerite Crystallography

Help on Crystal System: Crystal System: Trigonal Space Group: Unk

Physical Properties of Zirklerite

Help on Cleavage: Cleavage: {1011} Perfect, {1011} Perfect, {1011} Perfect
Help on Color: Color: White, Light gray.
Help on Density: Density: 2.6
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white

Optical Properties of Zirklerite

Help on Optical Data: Optical Data: Uniaxial (+), w=1.522, e=1.552, bire=0.0300.

Calculated Properties of Zirklerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.57 gm/cc
note: Specific Gravity of Zirklerite =2.60 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0083634013
Boson Index = 0.9916365987
Help on Photoelectric: Photoelectric: PEZirklerite = 9.62 barns/electron
U=PEZirklerite x rElectron Density= 24.76 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zirklerite is Not Radioactive

Zirklerite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.06)where Am Bn (O,OH)p Xq
  (10.06.05)Dana Group Zirklerite (Fe,Mg)9Al4Cl18(OH)12•14(H2O)(?) Unk Trig
Help on  Strunz Class: Strunz Class: 03.CJ.30 03 - HALIDES
  03.C - Complex Halides
  03.CJ -With MX6 complexes; M = Fe, Mn, Cu
03.CJ.30 Zirklerite (Fe,Mg)9Al4Cl18(OH)12•14(H2O)(?) Unk Trig

Other Zirklerite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Ford32) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Zirklerite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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


(Fe++,Mg)9Al4Cl18(OH)12•14(H2O) (?)
Dana No: Strunz No: 03.CJ.30