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General Svyatoslavite Information |
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 Chemical Formula: |
CaAl2Si2O8 | ||
| Composition: |
Molecular Weight = 278.21 gm | ||
| Calcium 14.41 % Ca 20.16 % CaO | |||
| Aluminum 19.40 % Al 36.65 % Al2O3 | |||
| Silicon 20.19 % Si 43.19 % SiO2 | |||
| Oxygen 46.01 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaAl2Si2O8 | ||
| Environment: |
Found as a sublimate (700-900 eg C) in a burning coal dump. | ||
| IMA Status: |
Approved IMA 1989 | ||
| Locality: |
Kopeysk, Chelyabinsk coal basin, southern Ural mountains, Russia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Svyatoslav Nestorovich Ivanov (b1911), Russian geologist. | ||
| Name Pronunciation: |
Svyatoslavite + Pronunciation  |
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Search for Svyatoslavite Images | |||
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Images:
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Svyatoslavite Crystallography |
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| Axial Ratios: |
a:b:c =0.9544:1:0.5599 | ||
| Cell Dimensions: |
a = 8.228, b = 8.621, c = 4.827, Z = 2; beta = 90° V = 342.40 Den(Calc)= 2.70 | ||
| Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.22(1), 2.09(0.8), 4.16(0.8), | ||
Physical Properties of Svyatoslavite |
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| Cleavage: |
{100} Indistinct | ||
| Color: |
Colorless. | ||
| Density: |
2.695 | ||
| Diaphaneity: |
Transparent | ||
| Hardness: |
6 - Orthoclase | ||
| Luminescence: |
Fluorescent, Short UV=weal yellow. | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Svyatoslavite |
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| Gladstone-Dale: |
CI meas= -0.017 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.015 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2112,KPDmeas= 0.2116,KC= 0.208 Ncalc = 1.56 |
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| Optical Data: |
Biaxial (-), a=1.552, b=1.578, g=1.581, bire=0.0290, 2V(Calc)=36, 2V(Meas)=37.08. | ||
Calculated Properties of Svyatoslavite |
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| Electron Density: |
Bulk Density (Electron Density)=2.68 gm/cc note: Specific Gravity of Svyatoslavite =2.70 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0098442021 Boson Index = 0.9901557979 |
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| Photoelectric: |
PESvyatoslavite = 3.12 barns/electron U=PESvyatoslavite x rElectron Density= 8.35 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Svyatoslavite is Not Radioactive |
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Svyatoslavite Classification |
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| Dana Class: |
76.01.06.04 (76)Tectosilicate Al-Si Framework | ||
| (76.01)with Al-Si frameworks | |||
| (76.01.06)Banalsite group | |||
| Strunz Class: |
09.FA.45 09 - SILICATES (Germanates) | ||
| 09.F - Tektosilicates without Zeolitic H2O | |||
| 09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1 | |||
Other Svyatoslavite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.76,p300,1996) OPTIC PROP.(Am.Min.,Vol.76,p300,1996) | ||
| See Also: |
Links to other databases for Svyatoslavite : 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 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Svyatoslavite using: Visit our Advertisers for Svyatoslavite : A Bijoux Google Search for SvyatoslaviteAdam's Minerals Google Search for Svyatoslavite Cape Minerals Google Search for Svyatoslavite Dakota Matrix Minerals Google Search for Svyatoslavite Excalibur Mineral Corp. Google Search for Svyatoslavite Exceptional Minerals Google Search for Svyatoslavite John Betts Fine Minerals Search for Svyatoslavite McDougall Minerals Google Search for Svyatoslavite Mineral News Website Link Rock and Mineral Shows Google Search for Svyatoslavite Weinrich Minerals, Inc. Google Search for Svyatoslavite Ask about Svyatoslavite here : Print or Cut-and-Paste your Svyatoslavite Specimen Label here :
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