General Ferroferribarroisite Information
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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. |
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Search for Ferroferribarroisite Images |
Images:
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Ferroferribarroisite Crystallography
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Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
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Calculated Properties of Ferroferribarroisite
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Fermion Index |
Fermion Index = 0.01753 Boson Index = 0.98247 |
Photoelectric: |
PEFerroferribarroisite = 9.11 barns/electron U=PEFerroferribarroisite x relectron= . barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ferroferribarroisite is Not Radioactive |
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Ferroferribarroisite Classification
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Dana Class: |
66.1.3b.8 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.1)Dana Type |
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(66.1.3b)Group 3, the sodic-calcic amphiboles |
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66.1.3b.1 Winchite [](CaNa)Mg4(Al,Fe3)Si8O22(OH)2 C 2/m 2/m |
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66.1.3b.1a Parvowinchite Na(NaMn)(Mg4Fe)Si8O22(OH)2 C 2/m 2/m |
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66.1.3b.2 Ferrowinchite [](CaNa)Fe4(Al,Fe)Si8O22(OH)2 C 2/m 2/m |
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66.1.3b.3 Ferriwinchite NaCaMg4FeSi8O22(OH)2 C 2/m 2/m |
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66.1.3b.4 Ferroferriwinchite* CaNa(Fe,Mg)4Fe[Si8O22](OH)2 C 2/m 2/m |
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66.1.3b.5 Barroisite [](CaNa)Mg3AlFeSi7AlO22(OH)2 C 2/m 2/m |
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66.1.3b.5a Aluminobarroisite! []CaNaMg3Al2(Si7Al)O22(OH)2 C 2/m 2/m |
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66.1.3b.6 Ferrobarroisite [](CaNa)Fe3AlFeSi7AlO22(OH)2 C 2/m 2/m |
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66.1.3b.6a Aluminoferrobarroisite! []CaNa(Fe2)3Al2(Si7Al)O22(OH)2 C 2/m 2/m |
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66.1.3b.7 Ferribarroisite CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m |
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66.1.3b.8 Ferroferribarroisite * CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m |
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66.1.3b.8a Ferri-ferrobarroisite! []CaNa(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m |
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66.1.3b.9 Richterite Na(CaNa)(Mg,Fe)5[Si8O22](OH)2 C 2/m 2/m |
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66.1.3b.9a Fluororichterite! Na(CaNa)Mg5[Si8O22]F2 C 2/m 2/m |
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66.1.3b.9b Potassic-fluororichterite! (K,Na)(CaNa)Mg5[Si8O22]F2 C 2/m 2/m |
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66.1.3b.9c Potassicrichterite! (K,Na)(CaNa)2Mg5[Si8O22](OH,F)2 C 2/m 2/m |
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66.1.3b.10 Ferrorichterite Na(CaNa)Fe5[Si8O22](OH)2 C 2/m 2/m |
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66.1.3b.11 Magnesiokatophorite Na(CaNa)Mg4AlSi7AlO22(OH)2 C 2/m 2/m |
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66.1.3b.12 Katophorite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m |
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66.1.3b.13 Magnesioferrikatophorite Na2Ca(Mg,Fe)4FeSi7AlO22(OH)2 C 2/m 2/m |
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66.1.3b.14 Ferrikatophorite Na2Ca(Fe,Mg)4Fe(Si7Al)O22(OH)2 C 2/m 2/m |
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66.1.3b.15 Magnesiotaramite Na(CaNa)Mg3ALFe[Si6Al2O22](OH)2 C 2/m 2/m |
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66.1.3b.15a Aluminomagnesiotaramite! NaCaNaMg3Al2[Si6Al2O22](OH)2 C 2/m 2/m |
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66.1.3b.16 Taramite Na(CaNa)Fe3AlFe[Si6Al2O22](OH)2 C 2/m 2/m |
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66.1.3b.17 Ferri-magnesiotaramite! NaCaNaMg3Fe2[Si6Al2O22](OH)2 C 2/m 2/m |
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66.1.3b.18 Ferritaramite Na(CaNa)(Fe,Mg)3Fe2[Si6Al2O22](OH)2 C 2/m 2/m |
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66.1.3b.19 IMA2003-050! NaCa2(Mg3FeAl)5(Si6Al2O22)F2 C 2/m 2/m |
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66.1.3b.20 IMA2003-062! Na(CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m |
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66.1.3b.21 IMA2004-045! [](CaMn)S2Mg5Si8O22(OH)2 C 2/m 2/m |
Strunz Class: |
VIII/FX.00-00 VIII - Silicates |
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VIII/FX - Unclassified Strunz Inosilicates |
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VIII/FX.00 - Group 3, the sodic-calcic amph |
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Other Ferroferribarroisite Information
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See Also: |
Links to other databases for Ferroferribarroisite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 -Google Images
4 -Google Scholar
5 -MinDAT
6 -MinMax(Deutsch)
7 -MinMax(English)
8 -Mineralienatlas (Deutsch)
9 -QUT Mineral Atlas
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Print or Cut-and-Paste your Ferroferribarroisite Specimen Label here :
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Ferroferribarroisite
CaNa(Fe++,Mg)3Fe+++2[AlSi7O22](OH)2
Dana No: 66.1.3b.8 Strunz No: VIII/FX.00-00
Locality:
Notes:
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