Ferroferribarroisite Mineral Data

Ferroferribarroisite Mineral Data

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General Ferroferribarroisite Information

Chemical Formula:

CaNa(Fe++,Mg)3Fe+++2[AlSi7O22](OH)2

Composition:

Molecular Weight = 928.23 gm

Sodium 2.48 % Na 3.34 % Na₂O

Calcium 4.32 % Ca 6.04 % CaO

Magnesium 1.96 % Mg 3.26 % MgO

Aluminum 2.91 % Al 5.49 % Al₂O₃

Iron 25.57 % Fe 17.42 % FeO / 17.20 % Fe₂O₃

Silicon 21.18 % Si 45.31 % SiO₂

Hydrogen 0.22 % H 1.94 % H₂O

Oxygen 41.37 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaNaFe²⁺_2.25Mg_0.75Fe³⁺₂(Si₇AlO₂₂)(OH)₂

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

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Ferroferribarroisite Crystallography

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

Calculated Properties of Ferroferribarroisite

Fermion Index

Fermion Index = 0.01753
Boson Index = 0.98247

Photoelectric:

PE_{Ferroferribarroisite}= 9.11 barns/electron
U=PE_{Ferroferribarroisite} x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Ferroferribarroisite is Not Radioactive

Ferroferribarroisite Classification

Dana Class:

66.1.3b.8 (66)Inosilicate Double-Width Unbranched Chains, W=2

(66.1)Dana Type

(66.1.3b)Group 3, the sodic-calcic amphiboles

66.1.3b.1 Winchite [](CaNa)Mg4(Al,Fe3)Si8O22(OH)2 C 2/m 2/m

66.1.3b.1a Parvowinchite Na(NaMn)(Mg4Fe)Si8O22(OH)2 C 2/m 2/m

66.1.3b.2 Ferrowinchite [](CaNa)Fe4(Al,Fe)Si8O22(OH)2 C 2/m 2/m

66.1.3b.3 Ferriwinchite NaCaMg4FeSi8O22(OH)2 C 2/m 2/m

66.1.3b.4 Ferroferriwinchite* CaNa(Fe,Mg)4Fe[Si8O22](OH)2 C 2/m 2/m

66.1.3b.5 Barroisite [](CaNa)Mg3AlFeSi7AlO22(OH)2 C 2/m 2/m

66.1.3b.5a Aluminobarroisite! []CaNaMg3Al2(Si7Al)O22(OH)2 C 2/m 2/m

66.1.3b.6 Ferrobarroisite [](CaNa)Fe3AlFeSi7AlO22(OH)2 C 2/m 2/m

66.1.3b.6a Aluminoferrobarroisite! []CaNa(Fe2)3Al2(Si7Al)O22(OH)2 C 2/m 2/m

66.1.3b.7 Ferribarroisite CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m

66.1.3b.8 Ferroferribarroisite * CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m

66.1.3b.8a Ferri-ferrobarroisite! []CaNa(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m

66.1.3b.9 Richterite Na(CaNa)(Mg,Fe)5[Si8O22](OH)2 C 2/m 2/m

66.1.3b.9a Fluororichterite! Na(CaNa)Mg5[Si8O22]F2 C 2/m 2/m

66.1.3b.9b Potassic-fluororichterite! (K,Na)(CaNa)Mg5[Si8O22]F2 C 2/m 2/m

66.1.3b.9c Potassicrichterite! (K,Na)(CaNa)2Mg5[Si8O22](OH,F)2 C 2/m 2/m

66.1.3b.10 Ferrorichterite Na(CaNa)Fe5[Si8O22](OH)2 C 2/m 2/m

66.1.3b.11 Magnesiokatophorite Na(CaNa)Mg4AlSi7AlO22(OH)2 C 2/m 2/m

66.1.3b.12 Katophorite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m

66.1.3b.13 Magnesioferrikatophorite Na2Ca(Mg,Fe)4FeSi7AlO22(OH)2 C 2/m 2/m

66.1.3b.14 Ferrikatophorite Na2Ca(Fe,Mg)4Fe(Si7Al)O22(OH)2 C 2/m 2/m

66.1.3b.15 Magnesiotaramite Na(CaNa)Mg3ALFe[Si6Al2O22](OH)2 C 2/m 2/m

66.1.3b.15a Aluminomagnesiotaramite! NaCaNaMg3Al2[Si6Al2O22](OH)2 C 2/m 2/m

66.1.3b.16 Taramite Na(CaNa)Fe3AlFe[Si6Al2O22](OH)2 C 2/m 2/m

66.1.3b.17 Ferri-magnesiotaramite! NaCaNaMg3Fe2[Si6Al2O22](OH)2 C 2/m 2/m

66.1.3b.18 Ferritaramite Na(CaNa)(Fe,Mg)3Fe2[Si6Al2O22](OH)2 C 2/m 2/m

66.1.3b.19 IMA2003-050! NaCa2(Mg3FeAl)5(Si6Al2O22)F2 C 2/m 2/m

66.1.3b.20 IMA2003-062! Na(CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m

66.1.3b.21 IMA2004-045! [](CaMn)S2Mg5Si8O22(OH)2 C 2/m 2/m

Strunz Class:

VIII/FX.00-00 VIII - Silicates

VIII/FX - Unclassified Strunz Inosilicates

VIII/FX.00 - Group 3, the sodic-calcic amph

Other Ferroferribarroisite Information

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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Ferroferribarroisite

CaNa(Fe++,Mg)3Fe+++2[AlSi7O22](OH)2
Dana No: 66.1.3b.8 Strunz No: VIII/FX.00-00
Locality:

Notes: