General Sodicgedrite Information Chemical Formula: |
NaMg6AlSi6Al2O22(OH)2 |
Composition: |
Molecular Weight = 804.28 gm |
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Sodium 2.86 % Na 3.85 % Na2O |
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Magnesium 18.13 % Mg 30.07 % MgO |
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Aluminum 10.06 % Al 19.02 % Al2O3 |
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Silicon 20.95 % Si 44.82 % SiO2 |
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Hydrogen 0.25 % H 2.24 % H2O |
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Oxygen 47.74 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
NaMg6Al(Si6Al2O22)(OH)2 |
IMA Status: |
Approved IMA 1997 |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Named for its composition and the original gederite location at Heas, Gedres, France. |
Name Pronunciation: |
Sodicgedrite + Pronunciation |
Synonym: |
Sodium-gedrite |
| | Search for Sodicgedrite Images
Images:
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| | Sodicgedrite Crystallography Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: P nma |
Crystal Structure:
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Mouse
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| Physical Properties of Sodicgedrite Cleavage: |
{???} Good |
Color: |
Light brown. |
Hardness: |
5-6 - Between Apatite and Orthoclase |
| Optical Properties of Sodicgedrite Optical Data: |
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| Calculated Properties of Sodicgedrite Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PESodicgedrite = 1.55 barns/electron |
U=PESodicgedrite x rElectron Density= . barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Sodicgedrite is Not Radioactive | Sodicgedrite Classification Dana Class: |
66.01.02.08 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.02)Dana Group |
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Strunz Class: |
09.DE.05 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family |
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| Other Sodicgedrite Information References: |
NAME( Dana8) |
See Also: |
Links to other databases for Sodicgedrite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Sodicgedrite using: Visit our Advertisers for Sodicgedrite : A Bijoux Google Search for SodicgedriteAdam's Minerals Google Search for Sodicgedrite Cape Minerals Google Search for Sodicgedrite Dakota Matrix Minerals Google Search for Sodicgedrite Excalibur Mineral Corp. Google Search for Sodicgedrite Exceptional Minerals Google Search for Sodicgedrite John Betts Fine Minerals Search for Sodicgedrite McDougall Minerals Google Search for Sodicgedrite Mineral News Website Link Rock and Mineral Shows Google Search for Sodicgedrite Weinrich Minerals, Inc. Google Search for Sodicgedrite Ask about Sodicgedrite here : Print or Cut-and-Paste your Sodicgedrite Specimen Label here :
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