[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery] John Betts - Fine Minerals Classic minerals, out-of-print books & magazines, plus informative articles for collectors General Ominelite Information(Fe++,Mg)Al3BSiO9 |
Molecular Weight = 316.53 gm |
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Magnesium 0.77 % Mg 1.27 % MgO |
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Aluminum 25.57 % Al 48.32 % Al2O3 |
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Iron 15.88 % Fe 20.43 % FeO |
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Silicon 8.87 % Si 18.98 % SiO2 |
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Boron 3.42 % B 11.00 % B2O3 |
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Oxygen 45.49 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Fe2+0.9Mg0.1Al3BSiO9 |
Accessory mineral found in a high alumina porphyritic granite of Miocene age associated with sekaninaite (Fe cordierite). Fe 2+ -analogue of grandidierite. |
Approved IMA 2002 (Dana # Added) |
Omine Mountains near the misen River at Tenkawa, Yoshio, Nara Prefecture, Japan. Link to MinDat.org Location Data. |
Named after the locality. |
IMA1999-025 |
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Ominelite Crystallographya:b:c =0.9311:1:0.5183 |
a = 10.363, b = 11.129, c = 5.769, Z = 4; V = 665.34 Den(Calc)= 3.16 |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbnm |
By Intensity(I/Io): 5.05(1), 5.21(0.9)(200), 2.18(0.75)(150,421,312),2.79(0.75)(040), 2.97(0.75)(101), 2.9(0.5), 3.51(0.5)(130), 3.73(0.5)(121), 5.57(0.5)(020), |
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Mouse
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| Physical Properties of OmineliteNone |
Blue. |
Transparent |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
Equant Grains - Granular material with equel dimensions in x, y, and z. |
7 - Quartz |
Vitreous (Glassy) |
pale blue |
| Optical Properties of Ominelite CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2047,KC= 0.2041 Ncalc = 1.64 Biaxial (-), a=1.631, b=1.654, g=1.656, bire=0.0250, 2V(Calc)=32, 2V(Meas)=31.5. Dispersion strong, r >> v. |
| Calculated Properties of OmineliteBulk Density (Electron Density)=3.09 gm/cc |
note: Specific Gravity of Ominelite =3.16 gm/cc. Fermion Index = 0.01 |
Boson Index = 0.99 PEOminelite = 5.87 barns/electron |
U=PEOminelite x rElectron Density= 18.12 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ominelite is Not Radioactive | Ominelite Classification54.01.01.02 (54)Nesosilicate Borosilicates and Some Beryllosilicates |
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(54.01)with (BO3) |
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(54.01.01)Grandidierite Group |
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09.AJ.05 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AJ -Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, |
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| Other Ominelite InformationNAME( AmMin, Vol 87, p 160) PHYS. PROP.(AmMin, Vol 87, p 160) OPTIC PROP.(AmMin, Vol 87, p 160) |
Links to other databases for Ominelite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Ominelite using: Visit our Advertisers for Ominelite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Ominelite Mineral Data : Ask about Ominelite here : Print or Cut-and-Paste your Ominelite Specimen Label here :
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