General Ferrobarroisite Information Chemical Formula: |
[ ](CaNa)Fe++3AlFe+++Si7AlO22(OH)2 |
Composition: |
Molecular Weight = 923.02 gm |
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Sodium 2.49 % Na 3.36 % Na2O |
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Calcium 4.34 % Ca 6.08 % CaO |
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Aluminum 5.85 % Al 11.05 % Al2O3 |
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Iron 24.20 % Fe 23.35 % FeO / 8.65 % Fe2O3 |
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Silicon 21.30 % Si 45.57 % SiO2 |
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Hydrogen 0.22 % H 1.95 % H2O |
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Oxygen 41.60 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
CaNaFe2+3AlFe3+(Si7AlO22)(OH)2 |
IMA Status: |
Approved IMA 1978 |
Locality: |
Link to MinDat.org Location Data. |
Name Origin: |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
Name Pronunciation: |
Ferrobarroisite |
| | Search for Ferrobarroisite Images
Images:
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| | Ferrobarroisite Crystallography Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Physical Properties of Ferrobarroisite Color: |
Green. |
Hardness: |
5-6 - Between Apatite and Orthoclase |
| Optical Properties of Ferrobarroisite Optical Data: |
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| Calculated Properties of Ferrobarroisite Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEFerrobarroisite = 8.75 barns/electron |
U=PEFerrobarroisite x rElectron Density= . barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferrobarroisite is Not Radioactive | Ferrobarroisite Classification Dana Class: |
66.01.03b.06 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03b)Group 3, the sodic-calcic amphiboles |
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Strunz Class: |
09.DE.20 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 Ferrobarroisite Information References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Ferrobarroisite : |
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 Ferrobarroisite using: Visit our Advertisers for Ferrobarroisite : A Bijoux Google Search for FerrobarroisiteAdam's Minerals Google Search for Ferrobarroisite Cape Minerals Google Search for Ferrobarroisite Dakota Matrix Minerals Google Search for Ferrobarroisite Excalibur Mineral Corp. Google Search for Ferrobarroisite Exceptional Minerals Google Search for Ferrobarroisite John Betts Fine Minerals Search for Ferrobarroisite McDougall Minerals Google Search for Ferrobarroisite Mineral News Website Link Rock and Mineral Shows Google Search for Ferrobarroisite Weinrich Minerals, Inc. Google Search for Ferrobarroisite Ask about Ferrobarroisite here : Print or Cut-and-Paste your Ferrobarroisite Specimen Label here :
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