IMA2009-009 Mineral Data

General IMA2009-009 Information

Chemical Formula:

KNa2Li(Mg,Fe)2Ti2Si8O24

Composition:

Molecular Weight = 860.83 gm

Potassium 4.54 % K 5.47 % K₂O

Sodium 5.34 % Na 7.20 % Na₂O

Lithium 0.81 % Li 1.74 % Li₂O

Magnesium 4.24 % Mg 7.02 % MgO

Titanium 11.12 % Ti 18.56 % TiO₂

Iron 3.24 % Fe 4.17 % FeO

Silicon 26.10 % Si 55.84 % SiO₂

Oxygen 44.61 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

KNa₂LiMg_1.5Fe²⁺_0.5Ti₂Si₈O₂₄

Environment:

Neptunite group.

IMA Status:

Proposed IMA 2009

Locality:

Lakargi Mountain, Kabardino-Balkaria, North Caucasus, Russia. Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

IMA2009-009 Crystallography

Axial Ratios:

a:b:c =1.3083:1:0.7986

Cell Dimensions:

a = 16.3271, b = 12.4788, c = 9.9666, Z = 4; beta = 115.651° V = 1,830.50 Den(Calc)= 3.12

Crystal System:

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

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

By Intensity(I/I_o): 3.56(1), 2.48(0.8), 9.7(0.8),1.5(0.7), 2.16(0.6), 2.81(0.4), 2.9(0.4), 3.9(0.4), 4.55(0.4),

Optical Properties of IMA2009-009

Optical Data:

NCalc= 1.75 - from Gladstone-Dale relationship (KC = 0.2407) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2009-009

Electron Density:

Bulk Density (Electron Density)=3.07 gm/cc
note: Specific Gravity of IMA2009-009 =3.12 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_IMA2009-009= 4.42 barns/electron
U=PE_IMA2009-009 x r_electron= 13.54 barns/cc.

Radioactivity:

GRapi = 64.40 (Gamma Ray American Petroleum Institute Units)
Concentration of IMA2009-009 per GRapi unit = 1.55 (%)

Estimated Radioactivity from IMA2009-009 - barely detectable

IMA2009-009 Classification

Dana Class:

70.04.01.04 (70)Inosilicate Column or Tube Structures

(70.04)with linked chains forming cages

(70.04.01)Neptunite group

70.04.01.01 Neptunite KNa2Li(Fe,Mn)2Ti2Si8O24 Cc m

70.04.01.02 Manganoneptunite KNa2Li(Mn,Fe)2Ti2Si8O24 C 2/m 2/m

70.04.01.03 Watatsumiite! Na2KMn2LiV2Si8O24 Cc m

70.04.01.04 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m

Strunz Class:

09.DX.00 09 - SILICATES (Germanates)

09.D - Unclassified Strunz Inosilicates

09.DX -Unknown

09.DX.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m

09.DX.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho

09.DX.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m

09.DX.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m

09.DX.00 Tanohataite! LiMn2Si3O8(OH) P1 1

09.DX.00 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m

09.DX.00 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 2₁/c 2/m

09.DX.00 Kushiroite CaAl2SiO6 C 2/c 2/m

09.DX.00 Grossmanite CaTiAlSiO6 C 2/m 2/m

09.DX.00 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m

09.DX.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1

09.DX.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m

Other IMA2009-009 Information

See Also:

Links to other databases for IMA2009-009 :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - Mineralienatlas (Deutsch)
7 - Online Mineral Museum
8 - Ruff.Info

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Print or Cut-and-Paste your IMA2009-009 Specimen Label here :

IMA2009-009

KNa2Li(Mg,Fe)2Ti2Si8O24
Dana No: 70.04.01.04 Strunz No: 09.DX.00
Locality:

Notes:

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