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General Stenonite Information |
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 Chemical Formula: |
(Sr,Ba,Na)2Al(CO3)F5 | ||
| Composition: |
Molecular Weight = 374.12 gm | ||
| Barium 22.02 % Ba 24.59 % BaO | |||
| Sodium 1.23 % Na 1.66 % Na2O | |||
| Strontium 28.10 % Sr 33.24 % SrO | |||
| Aluminum 7.21 % Al 13.63 % Al2O3 | |||
| Carbon 3.21 % C 11.76 % CO2 | |||
| Oxygen 12.83 % O | |||
| Fluorine 25.39 % F 25.39 % F | |||
| - % F -10.69 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 99.57 % = TOTAL OXIDE | |||
| Empirical Formula: |
Sr1.2Ba0.6Na0.2Al(CO3)F5 | ||
| Environment: |
Contact zone between siderite–cryolite and fluorite-rich rocks. | ||
| IMA Status: |
Approved IMA 1962 | ||
| Locality: |
Ivigtut cryolite deposit, southwestern Greenland. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Nicholaus Stenonis (Steno) (1638-1686), Danish scientist, who determined the constancy of interfacial angles of crystals. | ||
| Name Pronunciation: |
Stenonite + Pronunciation  |
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| Synonym: |
ICSD 201803 | ||
| PDF 15-366 | |||
Stenonite Image | |||
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Images:
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Stenonite Crystallography |
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| Axial Ratios: |
a:b:c =0.6261:1:1.5107 | ||
| Cell Dimensions: |
a = 5.45, b = 8.704, c = 13.15, Z = 4; beta = 98.72° V = 616.58 Den(Calc)= 4.03 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.166(1), 3.387(1), 1.925(0.8), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Stenonite |
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| Cleavage: |
{001} Good, {120} Good | ||
| Color: |
Colorless, White. | ||
| Density: |
3.86 | ||
| Diaphaneity: |
Transparent | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Stenonite |
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| Optical Data: |
Biaxial (-), a=1.452, b=1.527, g=1.538, bire=0.0860, 2V(Calc)=40, 2V(Meas)=43. | ||
Calculated Properties of Stenonite |
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| Electron Density: |
Bulk Density (Electron Density)=3.65 gm/cc note: Specific Gravity of Stenonite =4.03 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.05 Boson Index = 0.95 |
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| Photoelectric: |
PEStenonite = 130.68 barns/electron U=PEStenonite x rElectron Density= 476.91 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Stenonite is Not Radioactive |
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Stenonite Classification |
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| Dana Class: |
12.01.01.01 (12)Compound Halides | ||
| (12.01)with miscellaneous anions | |||
| (12.01.01)Dana Group | |||
| Strunz Class: |
03.CG.05 03 - HALIDES | ||
| 03.C - Complex Halides | |||
| 03.CG -Aluminofluorides with CO3, SO4, PO4 | |||
Other Stenonite Information |
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Stenonite : 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 Stenonite using: Visit our Advertisers for Stenonite : A Bijoux Google Search for StenoniteAdam's Minerals Google Search for Stenonite Cape Minerals Google Search for Stenonite Dakota Matrix Minerals Google Search for Stenonite Excalibur Mineral Corp. Google Search for Stenonite Exceptional Minerals Google Search for Stenonite John Betts Fine Minerals Search for Stenonite McDougall Minerals Google Search for Stenonite Mineral News Website Link Rock and Mineral Shows Google Search for Stenonite Weinrich Minerals, Inc. Google Search for Stenonite Ask about Stenonite here : Print or Cut-and-Paste your Stenonite Specimen Label here :
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