Mineralogy Database

Hibbingite Mineral Data

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General Hibbingite Information

Help on Chemical  Formula: Chemical Formula: (Fe,Mg)2(OH)3Cl
Help on Composition: Composition: Molecular Weight = 182.40 gm
   Magnesium   6.66 %  Mg   11.05 % MgO
   Iron       45.93 %  Fe   59.08 % FeO
   Hydrogen    1.66 %  H    14.82 % H2O
   Chlorine   19.44 %  Cl   19.44 % Cl
                -   %   Cl   -4.39 % -O=Cl2   
   Oxygen     26.32 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+1.5Mg0.5(OH)3Cl
Help on Environment: Environment: Serpentinized troctolite and peridotite.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Drill cores in the Duluth complex, near Hibbing, St. Louis Co., Minnesota, Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Hibbingite + Pronunciation Say HIBBINGITE
Help on Synonym: Synonym: IMA1991-036

Hibbingite Image

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Comments: Orange crystalline hibbingite grains in rock matrix.
Location: 900' level drill core, Duluth Complex, near Hibbing, Saint Louis County, Minnesota, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hibbingite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6858:1:0.7717
Help on Cell Dimensions: Cell Dimensions: a = 6.31, b = 9.2, c = 7.1, Z = 4; V = 412.17 Den(Calc)= 2.94
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnam
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.37(1), 2.93(0.6), 2.14(0.5),

Physical Properties of Hibbingite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Colorless, Yellow, Light green, Red.
Help on Density: Density: 3.04
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Streak: Streak: white

Optical Properties of Hibbingite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.127 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.097 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2211,KPDmeas= 0.2138,KC= 0.245
Ncalc = 1.72 - 1.74
Help on Optical Data: Optical Data: Biaxial (?), b=1.6-1.7

Calculated Properties of Hibbingite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.87 gm/cc
note: Specific Gravity of Hibbingite =2.94 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEHibbingite = 15.13 barns/electron
U=PEHibbingite x rElectron Density= 43.42 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hibbingite is Not Radioactive

Hibbingite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.01)where (A)2 (O,OH)3 Xq
  (10.01.01)Atacamite group Atacamite Cu2Cl(OH)3 Pmcn 2/m 2/m 2/m Hibbingite (Fe,Mg)2(OH)3Cl Pnam 2/m 2/m 2/m Gillardite! Cu3NiCl2(OH)6 R 3m 3 Haydeeite! Cu3Mg(OH)6Cl2 R 3m 3
Help on  Strunz Class: Strunz Class: 03.DA.10a 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DA -With Cu, etc., without Pb
03.DA.10a Atacamite Cu2Cl(OH)3 Pmcn 2/m 2/m 2/m
03.DA.10a Hibbingite (Fe,Mg)2(OH)3Cl Pnam 2/m 2/m 2/m
03.DA.10a Kempite Mn2Cl(OH)3 Pnam 2/m 2/m 2/m

Other Hibbingite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.79,p555-561,1994) OPTIC PROP.(Am.Min.,Vol.79,p555-561,1994)
Help on See Also: See Also: Links to other databases for Hibbingite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 03.DA.10a





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