IMA2004-045 Mineral Data

IMA2004-045 Mineral Data

General IMA2004-045 Information

Chemical Formula:

[ ](CaMn)S2Mg5Si8O22(OH)2

Composition:

Molecular Weight = 819.80 gm

Calcium 7.33 % Ca 10.26 % CaO

Magnesium 14.82 % Mg 24.58 % MgO

Manganese 3.35 % Mn 4.33 % MnO

Silicon 27.41 % Si 58.63 % SiO₂

Hydrogen 0.25 % H 2.20 % H₂O

Oxygen 46.84 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca_1.5Mn²⁺_0.5Mg₅Si₈O₂₂(OH)₂

Environment:

Amphibole group

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Arnold mine, Fowler, St. Lawrence Co., New York, USA Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-045 Crystallography

Axial Ratios:

a:b:c =0.5417:1:0.2931

Cell Dimensions:

a = 9.7807, b = 18.0548, c = 5.2928, Z = 2; beta = 104.19° V = 906.13 Den(Calc)= 3.00

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): 2.713(1), 3.113(0.8), 3.395(0.62),8.395(0.62), 2.531(0.59), 3.269(0.56), 9.027(0.54), 2.95(0.51),

Optical Properties of IMA2004-045

Optical Data:

NCalc= 1.61 - from Gladstone-Dale relationship (KC = 0.2087) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2004-045

Electron Density:

r_electron=2.90 gm/cc
note: r_IMA2004-045=2.91 gm/cc.

Fermion Index

Fermion Index = 0.02794
Boson Index = 0.97206

Photoelectric:

PE_IMA2004-045= 3.12 barns/electron
U=PE_IMA2004-045 x r_electron= 9.04 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

IMA2004-045 is Not Radioactive

IMA2004-045 Classification

Dana Class:

66.1.3b.21 (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 IMA2004-045 Information

See Also:

Links to other databases for IMA2004-045 :
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)

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Print or Cut-and-Paste your IMA2004-045 Specimen Label here :

IMA2004-045

[ ](CaMn)S2Mg5Si8O22(OH)2
Dana No: 66.1.3b.21 Strunz No: VIII/FX.00-00
Locality:

Notes: