IMA2004-049 Mineral Data

IMA2004-049 Mineral Data

General IMA2004-049 Information

Chemical Formula:

NaMg3(AlSi3)O10(OH)2

Composition:

Molecular Weight = 401.15 gm

Sodium 5.73 % Na 7.73 % Na₂O

Magnesium 18.18 % Mg 30.14 % MgO

Aluminum 6.73 % Al 12.71 % Al₂O₃

Silicon 21.00 % Si 44.93 % SiO₂

Hydrogen 0.50 % H 4.49 % H₂O

Oxygen 47.86 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

NaMg₃AlSi₃O₁₀(OH)₂

IMA Status:

Proposed IMA 2004 (Dana # Added)

Locality:

Kasagu-mura, Gifa Prefecture, Japan Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals and Mineral Names (CNMMN)

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IMA2004-049 Crystallography

Axial Ratios:

a:b:c =0.5776:1:1.1048

Cell Dimensions:

a = 5.291, b = 9.16, c = 10.12, Z = 2; beta = 105.1° V = 473.54 Den(Calc)= 2.81

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): 2.61(1), 9.77(1), 3.26(0.5),2.55(0.25), 4.59(0.25), 2.19(0.2), 2.45(0.2),

Optical Properties of IMA2004-049

Optical Data:

NCalc= 1.57 - from Gladstone-Dale relationship (KC = 0.21) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2004-049

Electron Density:

r_electron=2.71 gm/cc
note: r_IMA2004-049=2.72 gm/cc.

Fermion Index

Fermion Index = 0.02821
Boson Index = 0.97179

Photoelectric:

PE_IMA2004-049= 1.50 barns/electron
U=PE_IMA2004-049 x r_electron= 4.08 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

IMA2004-049 is Not Radioactive

IMA2004-049 Classification

Dana Class:

71.2.2b.17 (71)Phyllosilicate Sheets of Six-Membered Rings

(71.2)with 2:1 Layers

(71.2.2b)Mica Group (Biotite subgroup)

71.2.2b.1 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m

71.2.2b.1a Tetra-ferriphlogopite! KMg3FeSi3O10(OH)2 2/m

71.2.2b.1b Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m

71.2.2b.2 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m

71.2.2b.3 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m

71.2.2b.3a Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m

71.2.2b.4 Tetra-ferri-annite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m

71.2.2b.5 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m

71.2.2b.5a Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m

71.2.2b.6 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m

71.2.2b.7 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono

71.2.2b.8 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m

71.2.2b.8a Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m

71.2.2b.8b Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono

71.2.2b.9 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m

71.2.2b.10 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m

71.2.2b.11 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m

71.2.2b.12 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m

71.2.2b.13 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m

71.2.2b.14 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m

71.2.2b.15 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m

71.2.2b.16 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m

71.2.2b.17 IMA2004-049 ! NaMg3(AlSi3)O10(OH)2 C 2/m 2/m

Strunz Class:

VIII/HX.00-00 VIII - Silicates

VIII/HX - Unclassified Strunz Phyllosilicates

VIII/HX.00 - Mica Group

Other IMA2004-049 Information

See Also:

Links to other databases for IMA2004-049 :
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 IMA2004-049 Specimen Label here :

IMA2004-049

NaMg3(AlSi3)O10(OH)2
Dana No: 71.2.2b.17 Strunz No: VIII/HX.00-00
Locality:

Notes: