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Ferrohogbomite-2N2S Mineral Data

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General Ferrohogbomite-2N2S Information

Help on Chemical  Formula: Chemical Formula: (Fe++,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2
Help on Composition: Composition: Molecular Weight = 1,269.78 gm
   Magnesium   1.99 %  Mg    3.30 % MgO
   Titanium    3.05 %  Ti    5.10 % TiO2
   Manganese   0.22 %  Mn    0.28 % MnO
   Aluminum   31.66 %  Al   59.82 % Al2O3
   Zinc        4.79 %  Zn    5.96 % ZnO
   Chromium    0.08 %  Cr    0.12 % Cr2O3
   Gallium     0.16 %  Ga    0.22 % Ga2O3
   Iron       18.47 %  Fe   16.47 % FeO /  8.11 % Fe2O3
   Silicon     0.02 %  Si    0.05 % SiO2
   Nickel      0.05 %  Ni    0.06 % NiO
   Tin         0.28 %  Sn    0.36 % SnO2
   Hydrogen    0.16 %  H     1.43 % H2O
   Oxygen     39.06 %  O
             ______        ______ 
             100.00 %      101.27 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+2.91Zn0.93Mg1.04Mn2+0.05Ni0.01Al1.06Al13.84Fe3+1.29Ti0.81Ga0.03Sn0.03Cr0.02Si0.01 O28.98(OH)2.02
Help on Environment: Environment: Metamorphic environments (T 500 to 730 deg C) ultrahigh-temperature granulite-facies. (h�gbomite group; structure).
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Ain Taiba, Grand Erg Oriental, Algerian Sahara. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Fe-dominant member of the hogbomite series.
Help on Synonym: Synonym: Hogbomite-8H

Ferrohogbomite-2N2S Image

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Comments: Photomicrograph of euhedral ferrohogbomite-2N2S grains (Hog) in magnetite (Mgt). (MinMag, v 67, p 1084).
Location: Eastern Ghats belt, Andhra Pradesh, India. Scale: See Image.
© Mineralogical Magazine

Ferrohogbomite-2N2S Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.20675
Help on Cell Dimensions: Cell Dimensions: a = 5.712, c = 18.317, Z = 1; V = 517.56 Den(Calc)= 4.07
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Pyramidal H-M Symbol (6mm) Space Group: P 63mc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.427(1)(114), 2.603(0.88)(016), 1.43(0.56)(220),2.86(0.53)(110), 1.475(0.44)(0.2.10), 1.597(0.34)(126), 2.053(0.34)(025), 2.948(0.32)(015), 2.392(0.28)(022),

Physical Properties of Ferrohogbomite-2N2S

Help on Cleavage: Cleavage: {001} Distinct
Help on Color: Color: Chestnut brown.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Hexagonal - Six-sided crystal shape in cross-section or habit.
Help on Hardness: Hardness: 6-7 - Orthoclase-Quartz
Help on Luster: Luster: Adamantine
Help on Streak: Streak: brown

Optical Properties of Ferrohogbomite-2N2S

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.076 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2063,KC= 0.2232
Ncalc = 1.91
Help on Optical Data: Optical Data: Uniaxial (-), e=1.827, w=1.852, bire=0.0250.

Calculated Properties of Ferrohogbomite-2N2S

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.95 gm/cc
note: Specific Gravity of Ferrohogbomite-2N2S =4.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEFerrohogbomite-2N2S = 10.35 barns/electron
U=PEFerrohogbomite-2N2S x rElectron Density= 40.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ferrohogbomite-2N2S is Not Radioactive

Ferrohogbomite-2N2S Classification

Help on  Dana Class: Dana Class: (07)Multiple Oxides
  (07.11)as titano-oxides with [4] and [6] substitutions
  (07.11.07)Hogbomite Group (Ti>Sn) Magnesiohogbomite-2N3S (Mg,Fe)1.4Ti0.3Al4O8 P 63mc 6mm Magnesiohogbomite-2N2S (Al,Fe,Fe,Mg,Ti,Zn)11O15(OH) P 63mc 6mm Magnesiohogbomite-6N6S (Mg,Fe)1.4Ti0.3Al4O8 R 3m 3 2/m Zincohogbomite-2N2S! (Zn,Fe)(2-2x)(Ti)xAl4O8 P 63mc 6mm Ferrohogbomite-2N2S! (Fe,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2 P 63mc 6mm
Help on  Strunz Class: Strunz Class: 04.CB.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CB -With medium-sized cations
04.CB.20 Magnesiohogbomite-6N6S (Mg,Fe)1.4Ti0.3Al4O8 R 3m 3 2/m
04.CB.20 Magnesiohogbomite-2N3S (Mg,Fe)1.4Ti0.3Al4O8 P 63mc 6mm
04.CB.20 Magnesiohogbomite-2N2S (Al,Fe,Fe,Mg,Ti,Zn)11O15(OH) P 63mc 6mm
04.CB.20 Zincohogbomite-2N2S! (Zn,Fe)(2-2x)(Ti)xAl4O8 P 63mc 6mm
04.CB.20 Ferrohogbomite-2N2S! (Fe,Zn,Mg,Al)6Al14(Ti,Fe)2O30(OH)2 P 63mc 6mm

Other Ferrohogbomite-2N2S Information

Help on References: References: NAME( AmMin, 88:1176) PHYS. PROP.(AmMin, 88:1176) OPTIC PROP.(AmMin, 88:1176)
Help on See Also: See Also: Links to other databases for Ferrohogbomite-2N2S :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 04.CB.20





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