Moganite Mineral Data

Moganite Mineral Data
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General Moganite Information

Help on Chemical Formula: Chemical Formula: SiO2
Help on Composition: Composition: Molecular Weight = 60.08 gm
   Silicon  46.74 %  Si  100.00 % SiO2
   Oxygen   53.26 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (SiO2)
Help on Environment: Environment: Polymorphic relation with quartz
Help on IMA Status: IMA Status: Approved IMA 1999 (Dana # Added)
Help on Locality: Locality: Mogan, on southern Gran Canaria in the Canary Islands. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Moganite Say MOGANITE
Help on Synonym: Synonym: ICSD 67669
  IMA1999-035
  PDF 38-360
 

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Moganite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.7961:1:2.1974
Help on Cell Dimensions: Cell Dimensions: a = 8.758, b = 4.876, c = 10.715, beta = 90.08° V = 457.57
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.335(1), 4.43(0.9), 3.391(0.58),3.117(0.13), 1.83(0.11), 1.37(0.1),
Click Here for Large Moganite Structure Window Crystal Structure:

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Heaney P J , Post J E , American Mineralogist , 86 (2001) p.1358-1366, Evidence for an I2/a to Imab phase transition in the silica, polymorph moganite at ~570 K, Sample: T = 298 K, neutron

View Additional jPOWD Structure files for Moganite
[1] [2]
 

Physical Properties of Moganite

Help on Color: Color: Gray.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white
 

Optical Properties of Moganite

Help on Optical Data: Optical Data: Biaxial (?), b=1.526
 

Calculated Properties of Moganite

Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEMoganite = 1.80 barns/electron
U=PEMoganite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Moganite is Not Radioactive
 

Moganite Classification
Help on Dana Class: Dana Class: 75.01.04.02 (75)Tectosilicate Si Tetrahedral Frameworks
  (75.01)SiO2 with [4] coordinated Si
  (75.01.04)Dana Group
 
75.01.04.01 Coesite SiO2 C 2/c 2/m
 
75.01.04.02 Moganite! SiO2 I2/a 2/m
Help on Strunz Class: Strunz Class: 04.DA.20 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.20 Lutecite* SiO2 I12/a1=C 2/c 2/m
 
04.DA.20 Moganite! SiO2 I2/a 2/m
 

Other Moganite Information
Help on References: References: NAME( CanMin, Vol 38) PHYS. PROP.(CanMin, Vol 38) OPTIC PROP.(CanMin, Vol 38)
Help on See Also: See Also: Links to other databases for Moganite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info
12 - WWW-MINCRYST

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Print or Cut-and-Paste your Moganite Specimen Label here :

Moganite

SiO2
Dana No: 75.01.04.02 Strunz No: 04.DA.20
Locality:

 

Notes: