General Iimoriite-(Y) Information Chemical Formula: |
Y2(SiO4)(CO3) |
Composition: |
Molecular Weight = 329.90 gm |
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Yttrium 53.90 % Y 68.45 % Y2O3 |
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Silicon 8.51 % Si 18.21 % SiO2 |
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Carbon 3.64 % C 13.34 % CO2 |
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Oxygen 33.95 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Y2(SiO4)(CO3) |
Environment: |
In quartz-microcline pegmatite. |
IMA Status: |
Approved IMA 1970 |
Locality: |
Fusamata and Suishoyama, Kawatamachi, Fukushima Prefecture, Honsh, and Soraku, Kyoto Prefecture, Japan. Link to MinDat.org Location Data. |
Name Origin: |
Named for Satoyasa Iimorii (1885-1982), Japanese analytical chemist and REE specialist. |
Name Pronunciation: |
Iimoriite-(Y) + Pronunciation |
Synonym: |
ICSD 82489 |
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PDF 35-640 |
| | Iimoriite-(Y) Image
Images:
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Iimoriite-(Y) Crystallography Axial Ratios: |
a:b:c =0.9882:1:0.9703 |
Cell Dimensions: |
a = 6.573, b = 6.651, c = 6.454, Z = 2; alpha = 116.44°, beta = 92.34°, gamma = 95.63° V = 251.21 Den(Calc)= 4.36 |
Crystal System: |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 |
X Ray Diffraction: |
By Intensity(I/Io): 2.88(1), 2.95(0.8), 2.78(0.4), |
Crystal Structure:
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Mouse
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| Physical Properties of Iimoriite-(Y) Cleavage: |
{011} Distinct |
Color: |
Brown, Colorless, Gray pink, White, Purple gray. |
Density: |
4.47 |
Hardness: |
5.5-6 - Knife Blade-Orthoclase |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| Optical Properties of Iimoriite-(Y) Gladstone-Dale: |
CI meas= 0.016 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1832,KPDmeas= 0.1795,KC= 0.1824 Ncalc = 1.8 - 1.82 Optical Data: |
Biaxial (-), a=1.753, b=1.824, g=1.83, bire=0.0770, 2V(Calc)=30, 2V(Meas)=31. |
| Calculated Properties of Iimoriite-(Y) Electron Density: |
Bulk Density (Electron Density)=4.09 gm/cc |
note: Specific Gravity of Iimoriite-(Y) =4.38 gm/cc. Fermion Index: |
Fermion Index = 0.0045391139 |
Boson Index = 0.9954608861 Photoelectric: |
PEIimoriite-(Y) = 68.13 barns/electron |
U=PEIimoriite-(Y) x rElectron Density= 278.61 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Iimoriite-(Y) is Not Radioactive | Iimoriite-(Y) Classification Dana Class: |
53.01.03.01 (53)Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations |
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(53.01)with (CO3) |
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(53.01.03)Dana Group |
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Strunz Class: |
09.AH.05 09 - SILICATES (Germanates) |
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09.A - Nesosilicates |
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09.AH -Nesosilicates with CO3, SO4, PO4, etc. |
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| Other Iimoriite-(Y) Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Iimoriite-(Y) : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - GeoScienceWorld 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info 13 - WWW-MINCRYST Search for Iimoriite-(Y) using: Visit our Advertisers for Iimoriite-(Y) : A Bijoux Google Search for Iimoriite-(Y)Adam's Minerals Google Search for Iimoriite-(Y) Cape Minerals Google Search for Iimoriite-(Y) Dakota Matrix Minerals Google Search for Iimoriite-(Y) Excalibur Mineral Corp. Google Search for Iimoriite-(Y) Exceptional Minerals Google Search for Iimoriite-(Y) John Betts Fine Minerals Search for Iimoriite-(Y) McDougall Minerals Google Search for Iimoriite-(Y) Mineral News Website Link Rock and Mineral Shows Google Search for Iimoriite-(Y) Weinrich Minerals, Inc. Google Search for Iimoriite-(Y) Ask about Iimoriite-(Y) here : Print or Cut-and-Paste your Iimoriite-(Y) Specimen Label here :
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