IMA2009-004 Mineral Data

General IMA2009-004 Information

Chemical Formula:

KCa7Sn2Li3Si12O36F2

Composition:

Molecular Weight = 1,528.89 gm

Potassium 2.56 % K 3.08 % K₂O

Lithium 1.36 % Li 2.93 % Li₂O

Calcium 18.35 % Ca 25.67 % CaO

Silicon 22.04 % Si 47.16 % SiO₂

Tin 15.53 % Sn 19.71 % SnO₂

Oxygen 37.67 % O

Fluorine 2.49 % F 2.49 % F

- % F -1.05 % -O=F₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

KCa₇Sn₂Li₃Si₁₂O₃₆F₂

Environment:

Sn analogue of baratovite.

IMA Status:

Proposed IMA 2009

Locality:

Darai-Pioz alkaline massif, Darai-Pioz River, Tadjikistan. Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2009-004 Crystallography

Axial Ratios:

a:b:c =1.7444:1:2.1536

Cell Dimensions:

a = 17.01, b = 9.751, c = 21, Z = 4; beta = 112.45° V = 3,219.18 Den(Calc)= 3.15

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): 3.234(1), 2.425(0.42), 2.894(0.42),3.206(0.34), 3.712(0.33), 3.039(0.28), 1.95(0.25), 4.86(0.21),

Optical Properties of IMA2009-004

Optical Data:

NCalc= 1.62 - from Gladstone-Dale relationship (KC = 0.1964) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2009-004

Electron Density:

Bulk Density (Electron Density)=3.06 gm/cc
note: Specific Gravity of IMA2009-004 =3.15 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_IMA2009-004= 47.52 barns/electron
U=PE_IMA2009-004 x r_electron= 145.29 barns/cc.

Radioactivity:

GRapi = 35.82 (Gamma Ray American Petroleum Institute Units)
Concentration of IMA2009-004 per GRapi unit = 2.79 (%)

Estimated Radioactivity from IMA2009-004 - barely detectable

IMA2009-004 Classification

Dana Class:

61.01.04.04 (61)Cyclosilicate Six-Membered Rings

(61.01)with [Si6O18] rings; possible (OH) and Al substitution

(61.01.04)Baratovite group

61.01.04.01 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m

61.01.04.02 Katayamalite (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 C1 1

61.01.04.03 Faizievite! K2Na(Ca6Na)Ti4Li6Si24O66F2 P1 1

61.01.04.04 IMA2009-004 KCa7Sn2Li3Si12O36F2 C 2/m 2/m

Strunz Class:

09.CX.00 09 - SILICATES (Germanates)

09.C - Unclassified Strunz Cyklosilicates

09.CX -Unknown

09.CX.00 Klochite ([]1Na1)KFe2Zn3[Si12O30] P 6/mcc 6/m 2/m 2/m

09.CX.00 Friedrichbeckeite! K([],Na)Mg2(Be2Mg)Si12O30 P 6/mcc 6/m 2/m 2/m

09.CX.00 IMA2009-004 KCa7Sn2Li3Si12O36F2 C 2/m 2/m

Other IMA2009-004 Information

See Also:

Links to other databases for IMA2009-004 :
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 IMA2009-004 Specimen Label here :

IMA2009-004

KCa7Sn2Li3Si12O36F2
Dana No: 61.01.04.04 Strunz No: 09.CX.00
Locality:

Notes: