IMA2008-067 Mineral Data

General IMA2008-067 Information

Chemical Formula:

SiO2•n(CH4,C2H6,C3H8,C4H10); (nmax = 3/17)

Composition:

Molecular Weight = 62.91 gm

Silicon 44.65 % Si 95.51 % SiO₂

Hydrogen 1.13 % H 10.08 % H₂O

Carbon 3.36 % C

Oxygen 50.87 % O

______ ______

100.00 % 105.59 % = TOTAL OXIDE

Empirical Formula:

(SiO₂)(CH4)_0.17

Environment:

Natural analogue of synthetic silica clathrate MTN

IMA Status:

Proposed IMA 2009 (Dana # Added)

Locality:

Arakawa, Minami-boso City, Chiba Prefecture, Japan Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

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IMA2008-067 Crystallography

Cell Dimensions:

a = 19.3742, Z = 140; V = 7,272.29 Den(Calc)= 2.01

Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: Fd3

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

By Intensity(I/I_o): 3.276(1), 3.73(0.91), 5.847(0.83),5.596(0.46), 3.426(0.4), 6.858(0.38), 3.956(0.25), 4.847(0.24), 11.21(0.24),

Crystal Structure:

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Koennecke M , Miehe G , Fuess H , Zeitschrift fur Kristallographie , 201 (1992) p.147-155, Static disorder of dodecasil 3C. A single-crystal study with synchrotron radiation, Note: T = 523 K, split position refinement, Locality: Synthetic

Optical Properties of IMA2008-067

Optical Data:

NCalc= 1.47 - from Gladstone-Dale relationship (KC = 0.2329) where Ncalc=Dcalc*KC+1

Calculated Properties of IMA2008-067

Electron Density:

Bulk Density (Electron Density)=2.03 gm/cc
note: Specific Gravity of IMA2008-067 =2.01 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_IMA2008-067= 1.70 barns/electron
U=PE_IMA2008-067 x rElectron Density= 3.46 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
IMA2008-067 is Not Radioactive

IMA2008-067 Classification

Dana Class:

75.02.02.03 (75)Tectosilicate Si Tetrahedral Frameworks

(75.02)SiO2 with H2O and organics

(75.02.02)Melanophlogite Polymorphs

75.02.02.01 Melanophlogite SiO2•n(C,H,O,S) P 4₁/nbc 4/m 2/m 2/m

75.02.02.02 Melanophlogite-beta! SiO2•n(C,H,O,S) P m3n 4/m 3 2/m

75.02.02.03 IMA2008-067! SiO2•n(CH4,C2H6,C3H8,C4H10);(nmax=3/17) Fd3 2/m 3

Strunz Class:

04.DA.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.D - Metal:Oxygen = 1:2 and similar

04.DA -With small cations

04.DA.25 Melanophlogite SiO2•n(C,H,O,S) P 4₁/nbc 4/m 2/m 2/m

04.DA.25 IMA2008-067! SiO2•n(CH4,C2H6,C3H8,C4H10);(nmax=3/17) Fd3 2/m 3

04.DA.25 Melanophlogite-beta! SiO2•n(C,H,O,S) P m3n 4/m 3 2/m

Other IMA2008-067 Information

See Also:

Links to other databases for IMA2008-067 :
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 IMA2008-067 Specimen Label here :

IMA2008-067

SiO2•n(CH4,C2H6,C3H8,C4H10); (nmax = 3/17)
Dana No: 75.02.02.03 Strunz No: 04.DA.25
Locality:

Notes: