General Stronalsite Information Chemical Formula: |
SrNa2Al4Si4O16 |
Composition: |
Molecular Weight = 609.86 gm |
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Sodium 7.54 % Na 10.16 % Na2O |
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Strontium 14.37 % Sr 16.99 % SrO |
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Aluminum 17.70 % Al 33.44 % Al2O3 |
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Silicon 18.42 % Si 39.41 % SiO2 |
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Oxygen 41.98 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
SrNa2Al4Si4O16 |
Environment: |
Basic tuff xenoliths. |
IMA Status: |
Approved IMA 1987 |
Locality: |
Rendai, Kochi City, Japan. Link to MinDat.org Location Data. |
Name Origin: |
Named for its composition (Strontium, Na, Al, Si). |
Name Pronunciation: |
Stronalsite |
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Images:
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Stronalsite Crystallography Axial Ratios: |
a:b:c =0.8518:1:1.6928 |
Cell Dimensions: |
a = 8.408, b = 9.8699, c = 16.7083, Z = 4; V = 1,386.56 Den(Calc)= 2.92 |
Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Iba2 |
X Ray Diffraction: |
By Intensity(I/Io): 3.206(1), 3.504(0.8), 3.184(0.72), |
Crystal Structure:
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Mouse
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| Physical Properties of Stronalsite Cleavage: |
{100} Good, {001} Good |
Color: |
White. |
Density: |
2.95 |
Diaphaneity: |
Transparent |
Hardness: |
6.5 - Pyrite |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| Optical Properties of Stronalsite Gladstone-Dale: |
CI meas= 0.015 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1942,KPDmeas= 0.1922,KC= 0.1951 Ncalc = 1.57 - 1.58 Optical Data: |
Biaxial (+), a=1.563, b=1.564, g=1.574, bire=0.0110, 2V(Calc)=36, 2V(Meas)=32. |
| Calculated Properties of Stronalsite Electron Density: |
Bulk Density (Electron Density)=2.83 gm/cc |
note: Specific Gravity of Stronalsite =2.92 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEStronalsite = 17.00 barns/electron |
U=PEStronalsite x rElectron Density= 48.18 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Stronalsite is Not Radioactive | Stronalsite Classification Dana Class: |
76.01.06.02 (76)Tectosilicate Al-Si Framework |
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(76.01)with Al-Si frameworks |
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(76.01.06)Banalsite group |
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Strunz Class: |
09.FA.60 09 - SILICATES (Germanates) |
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09.F - Tektosilicates without Zeolitic H2O |
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09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1 |
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| Other Stronalsite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8, AmMin 91:1953) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Stronalsite : |
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 Search for Stronalsite using: Visit our Advertisers for Stronalsite : A Bijoux Google Search for StronalsiteAdam's Minerals Google Search for Stronalsite Cape Minerals Google Search for Stronalsite Dakota Matrix Minerals Google Search for Stronalsite Excalibur Mineral Corp. Google Search for Stronalsite Exceptional Minerals Google Search for Stronalsite John Betts Fine Minerals Search for Stronalsite McDougall Minerals Google Search for Stronalsite Mineral News Website Link Rock and Mineral Shows Google Search for Stronalsite Weinrich Minerals, Inc. Google Search for Stronalsite Ask about Stronalsite here : Print or Cut-and-Paste your Stronalsite Specimen Label here :
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