General Emeleusite Information![]() Na4Li2Fe+++2Si12O30 |
![]() Molecular Weight = 1,034.54 gm |
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Sodium 8.89 % Na 11.98 % Na2O |
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Lithium 1.34 % Li 2.89 % Li2O |
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Iron 10.80 % Fe 15.44 % Fe2O3 |
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Silicon 32.58 % Si 69.69 % SiO2 |
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Oxygen 46.40 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Na4Li2Fe3+2Si12O30 |
![]() A minor constituent of a peralkalic trachyte dike, inflow-banded aegirine-albite-rich layers. |
![]() Approved IMA 1978 |
![]() On the Island of Igdlutalik, Julianehab district, Greenland. Link to MinDat.org Location Data. |
![]() Named for Charles Henry Emeleus, University of Durham, Durham, England. |
![]() Emeleusite + Pronunciation |
![]() ![]() ICSD 34950 |
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PDF 29-832 |
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Emeleusite Crystallography![]() a:b:c =0.5805:1:0.8074 |
![]() a = 10.073, b = 17.35, c = 14.01, Z = 4; V = 2,448.48 Den(Calc)= 2.81 |
![]() Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnna |
![]() By Intensity(I/Io): 4.352(1), 3.209(0.8), 3.501(0.7), |
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| Physical Properties of Emeleusite![]() None |
![]() Colorless, Pink white. |
![]() 2.76 |
![]() Transparent |
![]() 5-6 - Between Apatite and Orthoclase |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Emeleusite![]() CI meas= 0.04 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.057 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2123,KPDmeas= 0.2162,KC= 0.2252 Ncalc = 1.62 - 1.63 ![]() Biaxial (-), a=1.596, b=1.597, g=1.597, bire=0.0010, 2V(Calc)=0, 2V(Meas)=0-5. |
| Calculated Properties of Emeleusite![]() Bulk Density (Electron Density)=2.72 gm/cc |
note: Specific Gravity of Emeleusite =2.76 gm/cc. ![]() Fermion Index = 0.01 |
Boson Index = 0.99 ![]() PEEmeleusite = 4.60 barns/electron |
U=PEEmeleusite x rElectron Density= 12.51 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Emeleusite is Not Radioactive | Emeleusite Classification![]() 66.03.04.03 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.03)with chains P>2 |
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(66.03.04)P=6 (Tahualite group) |
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![]() 09.DN.05 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DN -Inosilicates with 6-periodic double chains |
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| Other Emeleusite Information![]() NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Emeleusite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Emeleusite using: Visit our Advertisers for Emeleusite : A Bijoux Google Search for EmeleusiteAdam's Minerals Google Search for Emeleusite Cape Minerals Google Search for Emeleusite Dakota Matrix Minerals Google Search for Emeleusite Excalibur Mineral Corp. Google Search for Emeleusite Exceptional Minerals Google Search for Emeleusite John Betts Fine Minerals Search for Emeleusite McDougall Minerals Google Search for Emeleusite Mineral News Website Link Rock and Mineral Shows Google Search for Emeleusite Weinrich Minerals, Inc. Google Search for Emeleusite Ask about Emeleusite here : Print or Cut-and-Paste your Emeleusite Specimen Label here :
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