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Zincohogbomite-2N2S Mineral Data

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General Zincohogbomite-2N2S Information

Help on Chemical  Formula: Chemical Formula: (Zn,Fe++)(2-2x)(Ti)xAl4O8
Help on Composition: Composition: Molecular Weight = 335.37 gm
   Titanium   3.43 %  Ti    5.72 % TiO2
   Aluminum  32.18 %  Al   60.81 % Al2O3
   Zinc      15.40 %  Zn   19.17 % ZnO
   Iron      10.82 %  Fe   13.92 % FeO
   Oxygen    38.17 %  O
            ______        ______ 
            100.00 %       99.62 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.79Fe2+0.65Ti0.24Al4O8
Help on Environment: Environment: Formed by breakdown of gahnite in diasporites (diaspore-bearing metabauxites) and emeries (corundum-bearing metabauxites).
Help on IMA Status: IMA Status: Approved IMA 1994 (Dana # Added)
Help on Locality: Locality: Emory deposit at Kerketefs Mountain, Samos Island, Greece. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Zn dominant analogue of h�gbomite, found as the 8H and 16H polytypes. (S=Spinel, N=Nolanite Layers).
Help on Name Pronunciation: Name Pronunciation: Zincohogbomite-2N2S + Pronunciation Say ZINCOHOGBOMITE-2N2S
Help on Synonym: Synonym: IMA1994-016

Zincohogbomite-2N2S Image

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  Zincohogbomite-2N2S   Corundum

Comments: Thin-Section (Plane Polarized Light) of a brown, twinned zincohögbomite-2N2S crystal with blue corundum.
Location: Mikro-Lakka Emery deposit, Kerketeas Mt, Sámos Island, Aegean Islands Department, Greece. Scale: Picture size 1.1 mm.
© Thomas Witzke / Abraxas-Verlag

Zincohogbomite-2N2S Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:3.20777
Help on Cell Dimensions: Cell Dimensions: a = 5.708, c = 18.31, Z = 4; V = 516.64 Den(Calc)= 4.31
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): 2.42(1), 1.425(0.8), 2.6(0.8),

Physical Properties of Zincohogbomite-2N2S

Help on Cleavage: Cleavage: None
Help on Color: Color: Deep brown, Black.
Help on Density: Density: 4.36
Help on Diaphaneity: Diaphaneity: Transparent to Opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Pseudo Tetragonal - Crystals show a tetragonal shape.
Help on Hardness: Hardness: 7 - Quartz
Help on Luster: Luster: Adamantine
Help on Streak: Streak: brownish

Optical Properties of Zincohogbomite-2N2S

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.042 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1984,KPDmeas= 0.1961,KC= 0.2048
Ncalc = 1.88 - 1.89
Help on Optical Data: Optical Data: Uniaxial (-), e=1.832, w=1.878, bire=0.0460.

Calculated Properties of Zincohogbomite-2N2S

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.16 gm/cc
note: Specific Gravity of Zincohogbomite-2N2S =4.31 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEZincohogbomite-2N2S = 12.40 barns/electron
U=PEZincohogbomite-2N2S x rElectron Density= 51.59 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zincohogbomite-2N2S is Not Radioactive

Zincohogbomite-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 Zincohogbomite-2N2S Information

Help on References: References: NAME( AmMin, Vol. 84, No. 7-8) PHYS. PROP.(AmMin, Vol. 78, No. 7-8) OPTIC PROP.(AmMin, Vol. 84, No. 7-8)
Help on See Also: See Also: Links to other databases for Zincohogbomite-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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