Ferrorichterite Mineral Data
General Ferrorichterite Information
Chemical Formula:
Na(CaNa)Fe++5[Si8O22](OH)2
Composition:
Molecular Weight = 975.98 gm
Sodium 4.71 % Na 6.35 % Na2 O
Calcium 4.11 % Ca 5.75 % CaO
Iron 28.61 % Fe 36.81 % FeO
Silicon 23.02 % Si 49.25 % SiO2
Hydrogen 0.21 % H 1.85 % H2 O
Oxygen 39.34 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na2 CaFe2+ 5 (Si8 O22 )(OH)2
IMA Status:
Valid Species (Pre-IMA) 1946
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:
Ferrorichterite + Pronunciation
Ferrorichterite Image
Images:
Ferrorichterite Crystallography
Axial Ratios:
a:b:c =0.5477:1:0.2907
Cell Dimensions:
a = 9.982, b = 18.223, c = 5.298, Z = 2; beta = 103.73° V = 936.18 Den(Calc)= 3.46
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
X Ray Diffraction:
By Intensity(I/Io ): 8.58(1), 2.739(0.7), 3.18(0.65),
Physical Properties of Ferrorichterite
Cleavage:
{110} Perfect
Color:
Brown, Light green, Dark green, Reddish brown.
Density:
3.46
Diaphaneity:
Transparent to Translucent
Hardness:
5-6 - Between Apatite and Orthoclase
Luster:
Vitreous (Glassy)
Optical Properties of Ferrorichterite
Gladstone-Dale:
CI meas = -0.001 (Superior) - where the CI = (1-KPDmeas /KC ) CI calc = -0.001 (Superior) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2023,KPDmeas = 0.2023,KC = 0.202 Ncalc = 1.7
Optical Data:
Biaxial (-), a=1.69, g=1.71, bire=0.0200, 2V(Meas)=68-72.
Calculated Properties of Ferrorichterite
Electron Density:
Bulk Density (Electron Density)=3.39 gm/cc note: Specific Gravity of Ferrorichterite =3.46 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEFerrorichterite = 9.97 barns/electronU=PEFerrorichterite x r Electron Density= 33.80 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ferrorichterite is Not Radioactive
Ferrorichterite Classification
Dana Class:
66.01.03b.10 (66) Inosilicate Double-Width Unbranched Chains, W=2
(66.01) with P=2 amphibole configuration
(66.01.03b) Group 3, the sodic-calcic amphiboles
66.01.03b.01 Winchite [](CaNa)Mg4(Al,Fe3)Si8O22(OH)2 C 2/m 2/m
66.01.03b.01a Parvowinchite Na(NaMn)(Mg4Fe)Si8O22(OH)2 C 2/m 2/m
66.01.03b.02 Ferrowinchite [](CaNa)Fe4(Al,Fe)Si8O22(OH)2 C 2/m 2/m
66.01.03b.03 Ferriwinchite ([],Na)(Na,Ca)2(Mg,Fe)4Fe[Si8O22](OH)2 C 2/m 2/m
66.01.03b.04 Ferroferriwinchite * CaNa(Fe,Mg)4Fe[Si8O22](OH)2 C 2/m 2/m
66.01.03b.05 Barroisite [](CaNa)Mg3AlFeSi7AlO22(OH)2 C 2/m 2/m
66.01.03b.05a Aluminobarroisite ! []CaNaMg3Al2(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03b.06 Ferrobarroisite [](CaNa)Fe3AlFeSi7AlO22(OH)2 C 2/m 2/m
66.01.03b.06a Aluminoferrobarroisite ! []CaNa(Fe2)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03b.07 Ferribarroisite CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m
66.01.03b.08 Ferroferribarroisite * CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m
66.01.03b.08a Ferri-ferrobarroisite ! []CaNa(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03b.09 Richterite Na(CaNa)(Mg,Fe)5[Si8O22](OH)2 C 2/m 2/m
66.01.03b.09a Fluororichterite ! Na(CaNa)Mg5[Si8O22]F2 C 2/m 2/m
66.01.03b.09b Potassic-fluororichterite ! (K,Na)(CaNa)Mg5[Si8O22]F2 C 2/m 2/m
66.01.03b.09c Potassicrichterite ! (K,Na)(CaNa)2Mg5[Si8O22](OH,F)2 C 2/m 2/m
66.01.03b.10 Ferrorichterite Na(CaNa)Fe5[Si8O22](OH)2 C 2/m 2/m
66.01.03b.11 Magnesiokatophorite Na(CaNa)Mg4AlSi7AlO22(OH)2 C 2/m 2/m
66.01.03b.12 Katophorite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m
66.01.03b.13 Magnesioferrikatophorite Na2Ca(Mg,Fe)4FeSi7AlO22(OH)2 C 2/m 2/m
66.01.03b.14 Ferrikatophorite Na2Ca(Fe,Mg)4Fe(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03b.15 Magnesiotaramite Na(CaNa)Mg3ALFe[Si6Al2O22](OH)2 C 2/m 2/m
66.01.03b.15a Aluminotaramite ! Na(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
66.01.03b.15b Alumino-magnesiotaramite ! Na(CaNa)(Mg3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
66.01.03b.15c Fluoro-alumino-magnesiotaramite ! Na(CaNa)(Mg3Al2)(Si6Al2)O22F2 C 2/m 2/m
66.01.03b.16 Taramite Na(CaNa)Fe3AlFe[Si6Al2O22](OH)2 C 2/m 2/m
66.01.03b.17 Ferri-magnesiotaramite ! NaCaNaMg3Fe2[Si6Al2O22](OH)2 C 2/m 2/m
66.01.03b.18 Ferritaramite Na(CaNa)(Fe,Mg)3Fe2[Si6Al2O22](OH)2 C 2/m 2/m
66.01.03b.19 Fluoropargasite ! NaCa2(Mg3FeAl)5(Si6Al2O22)F2 C 2/m 2/m
66.01.03b.20 Parvo-mangano-edenite ! Na(CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m
66.01.03b.21 Parvo-manganotremolite ! [](CaMn)2Mg5(Si7Al)O22(OH)2 C 2/m 2/m
Strunz Class:
09.DE.20 09 - SILICATES (Germanates)
09.D - Inosilicates* Structural terminology according to Liebau (1985)
09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family
09.DE.20 Winchite [](CaNa)Mg4(Al,Fe3)Si8O22(OH)2 C 2/m 2/m
09.DE.20 Aluminobarroisite ! []CaNaMg3Al2(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.20 Ferriwinchite ([],Na)(Na,Ca)2(Mg,Fe)4Fe[Si8O22](OH)2 C 2/m 2/m
09.DE.20 Ferroferriwinchite * CaNa(Fe,Mg)4Fe[Si8O22](OH)2 C 2/m 2/m
09.DE.20 Aluminoferrobarroisite ! []CaNa(Fe2)3Al2(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.20 Ferri-ferrobarroisite ! []CaNa(Fe)3(Fe)2(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.20 Ferribarroisite CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m
09.DE.20 Barroisite [](CaNa)Mg3AlFeSi7AlO22(OH)2 C 2/m 2/m
09.DE.20 Fluororichterite ! Na(CaNa)Mg5[Si8O22]F2 C 2/m 2/m
09.DE.20 Ferrobarroisite [](CaNa)Fe3AlFeSi7AlO22(OH)2 C 2/m 2/m
09.DE.20 Magnesiotaramite Na(CaNa)Mg3ALFe[Si6Al2O22](OH)2 C 2/m 2/m
09.DE.20 Ferrikatophorite Na2Ca(Fe,Mg)4Fe(Si7Al)O22(OH)2 C 2/m 2/m
09.DE.20 Ferrorichterite Na(CaNa)Fe5[Si8O22](OH)2 C 2/m 2/m
09.DE.20 Ferrowinchite [](CaNa)Fe4(Al,Fe)Si8O22(OH)2 C 2/m 2/m
09.DE.20 Ferroferribarroisite * CaNa(Fe,Mg)3Fe2[AlSi7O22](OH)2 C 2/m 2/m
09.DE.20 Ferritaramite Na(CaNa)(Fe,Mg)3Fe2[Si6Al2O22](OH)2 C 2/m 2/m
09.DE.20 Ferri-magnesiotaramite ! NaCaNaMg3Fe2[Si6Al2O22](OH)2 C 2/m 2/m
09.DE.20 Magnesioferrikatophorite Na2Ca(Mg,Fe)4FeSi7AlO22(OH)2 C 2/m 2/m
09.DE.20 Katophorite Na(CaNa)Fe4(Al,Fe)Si7AlO22(OH)2 C 2/m 2/m
09.DE.20 Parvowinchite Na(NaMn)(Mg4Fe)Si8O22(OH)2 C 2/m 2/m
09.DE.20 Potassic-fluororichterite ! (K,Na)(CaNa)Mg5[Si8O22]F2 C 2/m 2/m
09.DE.20 Richterite Na(CaNa)(Mg,Fe)5[Si8O22](OH)2 C 2/m 2/m
09.DE.20 Taramite Na(CaNa)Fe3AlFe[Si6Al2O22](OH)2 C 2/m 2/m
09.DE.20 Magnesiokatophorite Na(CaNa)Mg4AlSi7AlO22(OH)2 C 2/m 2/m
09.DE.20 Potassicrichterite ! (K,Na)(CaNa)2Mg5[Si8O22](OH,F)2 C 2/m 2/m
09.DE.20 Fluoro-alumino-magnesiotaramite ! Na(CaNa)(Mg3Al2)(Si6Al2)O22F2 C 2/m 2/m
09.DE.20 Aluminotaramite ! Na(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
09.DE.20 Alumino-magnesiotaramite ! Na(CaNa)(Mg3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
Other Ferrorichterite Information
References:
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Ferrorichterite :
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
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Ferrorichterite
Na(CaNa)Fe++5[Si8O22](OH)2
Dana No: 66.01.03b.10 Strunz No: 09.DE.20
Locality:
Notes:
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