General Magnesiohogbomite-2N3S Information Chemical Formula: |
(Mg,Fe++)1.4Ti0.3Al4O8 |
Composition: |
Molecular Weight = 421.89 gm |
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Magnesium 2.88 % Mg 4.78 % MgO |
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Titanium 3.40 % Ti 5.68 % TiO2 |
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Aluminum 31.34 % Al 59.21 % Al2O3 |
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Zinc 3.10 % Zn 3.86 % ZnO |
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Iron 18.53 % Fe 15.33 % FeO / 9.46 % Fe2O3 |
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Hydrogen 0.17 % H 1.49 % H2O |
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Oxygen 40.58 % O |
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______ ______ |
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100.00 % 99.81 % = TOTAL OXIDE |
Empirical Formula: |
Fe2+0.9Fe3+0.5Mg0.5Zn0.2Al4.9Ti0.3O10(OH)0.7 |
Environment: |
Metamorphosed iron ore deposits. |
IMA Status: |
Approved IMA 1963 |
Locality: |
Ruoutevare district, Lapland, Norway. Link to MinDat.org Location Data. |
Name Origin: |
Named for Arvid Gustaf Hogbom (1857-1940), Swedish geologist, University of Upplala and the crystal structure. (S=Spinel, N=Nolanite Layers). |
Synonym: |
Hogbomite-10T |
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IMA2001-A |
| | Search for Magnesiohogbomite-2N3S Images
Images:
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| | Magnesiohogbomite-2N3S Crystallography Axial Ratios: |
a:c = 1:3.20804 |
Cell Dimensions: |
a = 5.72, c = 18.35, Z = 3; V = 519.95 Den(Calc)= 4.04 |
Crystal System: |
Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc |
X Ray Diffraction: |
By Intensity(I/Io): 2.43(1), 1.426(0.8), 1.436(0.6),1.978(0.6), 2.08(0.6), 2.49(0.6), 2.86(0.4), 4.6(0.4), |
| Physical Properties of Magnesiohogbomite-2N3S Cleavage: |
{0001} Imperfect |
Color: |
Black. |
Density: |
3.81 |
Diaphaneity: |
Subtranslucent to opaque |
Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
Habit: |
Tabular - Form dimensions are thin in one direction. |
Hardness: |
6.5 - Pyrite |
Luster: |
Adamantine |
Streak: |
gray |
| Optical Properties of Magnesiohogbomite-2N3S Gladstone-Dale: |
CI meas= 0.031 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.086 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.205,KPDmeas= 0.2173,KC= 0.2242 Ncalc = 1.85 - 1.91 Optical Data: |
Uniaxial (-), e=1.803, w=1.853, bire=0.0500. |
RL Anisotrophism: |
Distinct. |
Reflectivity |
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| Calculated Properties of Magnesiohogbomite-2N3S Electron Density: |
Bulk Density (Electron Density)=3.70 gm/cc |
note: Specific Gravity of Magnesiohogbomite-2N3S =3.81 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEMagnesiohogbomite-2N3S = 8.62 barns/electron |
U=PEMagnesiohogbomite-2N3S x rElectron Density= 31.90 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Magnesiohogbomite-2N3S is Not Radioactive | Magnesiohogbomite-2N3S Classification Dana Class: |
07.11.07.01 (07)Multiple Oxides |
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(07.11)as titano-oxides with [4] and [6] substitutions |
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(07.11.07)Hogbomite Group (Ti>Sn) |
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Strunz Class: |
04.CB.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CB -With medium-sized cations |
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| Other Magnesiohogbomite-2N3S Information References: |
NAME( Ford32) PHYS. PROP.(Ford32) OPTIC PROP.(Ford32) |
See Also: |
Links to other databases for Magnesiohogbomite-2N3S : |
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 Search for Magnesiohogbomite-2N3S using: Visit our Advertisers for Magnesiohogbomite-2N3S : A Bijoux Google Search for Magnesiohogbomite-2N3SAdam's Minerals Google Search for Magnesiohogbomite-2N3S Cape Minerals Google Search for Magnesiohogbomite-2N3S Dakota Matrix Minerals Google Search for Magnesiohogbomite-2N3S Excalibur Mineral Corp. Google Search for Magnesiohogbomite-2N3S Exceptional Minerals Google Search for Magnesiohogbomite-2N3S John Betts Fine Minerals Search for Magnesiohogbomite-2N3S McDougall Minerals Google Search for Magnesiohogbomite-2N3S Mineral News Website Link Rock and Mineral Shows Google Search for Magnesiohogbomite-2N3S Weinrich Minerals, Inc. Google Search for Magnesiohogbomite-2N3S Ask about Magnesiohogbomite-2N3S here : Print or Cut-and-Paste your Magnesiohogbomite-2N3S Specimen Label here :
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