Aluminotaramite Mineral Data

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General Aluminotaramite Information

Chemical Formula:

Na(CaNa)(Fe+++3Al2)(Si6Al2)O22(OH)2

Composition:

Molecular Weight = 893.08 gm

Potassium 0.04 % K 0.05 % K₂O

Sodium 4.40 % Na 5.93 % Na₂O

Calcium 4.80 % Ca 6.72 % CaO

Magnesium 4.41 % Mg 7.31 % MgO

Titanium 0.38 % Ti 0.63 % TiO₂

Manganese 0.06 % Mn 0.08 % MnO

Aluminum 8.73 % Al 16.50 % Al₂O₃

Zinc 0.07 % Zn 0.09 % ZnO

Iron 14.26 % Fe 14.96 % FeO / 3.76 % Fe₂O₃

Silicon 19.59 % Si 41.91 % SiO₂

Hydrogen 0.21 % H 1.88 % H₂O

Oxygen 42.75 % O

Fluorine 0.30 % F 0.30 % F

- % F -0.13 % -O=F₂

______ ______

100.00 % 99.99 % = TOTAL OXIDE

Empirical Formula:

Na_0.89K_0.01Fe²⁺_0.11Na_0.82Ca_1.07Fe²⁺_1.75Mg_1.62Al_1.12Fe³⁺_0.42Ti_0.07Zn_0.01Mn²⁺_0.01 Si_6.23Al_1.77O₂₂(OH)_1.86F_0.14

Environment:

Occurs in the Liset kyanite-eclogite pod, a retrogressed eclogite. Very high pressure metamorphic rocks. Amphibole group

IMA Status:

Approved IMA 2006 (Dana # Added)

Locality:

Liset, near Selje, Möre og Romsdal County, Vestlandet, Norway 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:

Aluminotaramite

Synonym:

IMA2006-023

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Aluminotaramite Crystallography

Axial Ratios:

a:b:c =0.5434:1:0.2967

Cell Dimensions:

a = 9.7489, b = 17.9377, c = 5.3233, Z = 2; beta = 104.539° V = 901.09 Den(Calc)= 3.29

Crystal System:

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

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 8.352(1), 2.703(0.92), 3.098(0.68),2.546(0.56), 2.586(0.48), 2.322(0.4), 3.386(0.39), 2.156(0.33),

Crystal Structure:

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Oberti R , Boiocchi M , Smith D C , Medenbach O , American Mineralogist , 92 (2007) p.1428-1435, Aluminotaramite, alumino-magnesiotaramite, and fluoro-alumino-magnesiotaramite:, Mineral data and crystal chemistry, Locality: Liset kyanite-eclogite pod, near Selje, More og Romsdal County, Vestlandet, Norway, Note: amphibole, Sample: K22-2

Physical Properties of Aluminotaramite

Cleavage:

{110} Poor, {110} Poor

Color:

Green bluish.

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Luster:

Vitreous (Glassy)

Optical Properties of Aluminotaramite

Gladstone-Dale:

CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2049,KC= 0.2107
Ncalc = 1.69

Optical Data:

Biaxial (-), a=1.663, b=1.675, g=1.684, bire=0.0210, 2V(Calc)=80, 2V(Meas)=71. Dispersion r << v extreme.

Calculated Properties of Aluminotaramite

Electron Density:

Bulk Density (Electron Density)=3.24 gm/cc
note: Specific Gravity of Aluminotaramite =3.29 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Aluminotaramite}= 6.10 barns/electron
U=PE_{Aluminotaramite} x r_electron= 19.79 barns/cc.

Radioactivity:

GRapi = 0.61 (Gamma Ray American Petroleum Institute Units)
Concentration of Aluminotaramite per GRapi unit =163.94 (%)

Estimated Radioactivity from Aluminotaramite - barely detectable

Aluminotaramite Classification

Dana Class:

66.01.03b.15a (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 Aluminotaramite Information

References:

NAME( AmMin v92:1428) PHYS. PROP.(AmMin v92:1428) OPTIC PROP.(AmMin v92:1428)

See Also:

Links to other databases for Aluminotaramite :
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

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Print or Cut-and-Paste your Aluminotaramite Specimen Label here :

Aluminotaramite

Na(CaNa)(Fe+++3Al2)(Si6Al2)O22(OH)2
Dana No: 66.01.03b.15a Strunz No: 09.DE.20
Locality:

Notes: