General Ferroferribarroisite Information Chemical Formula: |
CaNa(Fe++,Mg)3Fe+++2[AlSi7O22](OH)2 |
Composition: |
Molecular Weight = 928.23 gm |
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Sodium 2.48 % Na 3.34 % Na2O |
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Calcium 4.32 % Ca 6.04 % CaO |
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Magnesium 1.96 % Mg 3.26 % MgO |
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Aluminum 2.91 % Al 5.49 % Al2O3 |
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Iron 25.57 % Fe 17.42 % FeO / 17.20 % Fe2O3 |
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Silicon 21.18 % Si 45.31 % SiO2 |
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Hydrogen 0.22 % H 1.94 % H2O |
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Oxygen 41.37 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
CaNaFe2+2.25Mg0.75Fe3+2(Si7AlO22)(OH)2 |
IMA Status: |
Not Approved IMA |
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). |
| | Search for Ferroferribarroisite Images
Images:
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| | Ferroferribarroisite Crystallography Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
| Optical Properties of Ferroferribarroisite Optical Data: |
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| Calculated Properties of Ferroferribarroisite Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEFerroferribarroisite = 9.11 barns/electron |
U=PEFerroferribarroisite x rElectron Density= . barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Ferroferribarroisite is Not Radioactive | Ferroferribarroisite Classification Dana Class: |
66.01.03b.08 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03b)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 Ferroferribarroisite Information See Also: |
Links to other databases for Ferroferribarroisite : |
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 Ferroferribarroisite using: Visit our Advertisers for Ferroferribarroisite : A Bijoux Google Search for FerroferribarroisiteAdam's Minerals Google Search for Ferroferribarroisite Cape Minerals Google Search for Ferroferribarroisite Dakota Matrix Minerals Google Search for Ferroferribarroisite Excalibur Mineral Corp. Google Search for Ferroferribarroisite Exceptional Minerals Google Search for Ferroferribarroisite John Betts Fine Minerals Search for Ferroferribarroisite McDougall Minerals Google Search for Ferroferribarroisite Mineral News Website Link Rock and Mineral Shows Google Search for Ferroferribarroisite Weinrich Minerals, Inc. Google Search for Ferroferribarroisite Ask about Ferroferribarroisite here : Print or Cut-and-Paste your Ferroferribarroisite Specimen Label here :
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