Mineralogy Database

Magnesionigerite-6N6S Mineral Data

Search Webmineral :

General Magnesionigerite-6N6S Information

Help on Chemical  Formula: Chemical Formula: (Mg,Zn,Fe+++,Al)4(Sn,Fe+++)2Al10O22(OH)2
Help on Composition: Composition: Molecular Weight = 964.03 gm
   Magnesium   4.79 %  Mg    7.94 % MgO
   Aluminum   29.95 %  Al   56.58 % Al2O3
   Zinc        4.07 %  Zn    5.07 % ZnO
   Iron        5.79 %  Fe    1.49 % FeO /  6.63 % Fe2O3
   Silicon     0.58 %  Si    1.25 % SiO2
   Tin        14.78 %  Sn   18.76 % SnO2
   Hydrogen    0.21 %  H     1.87 % H2O
   Oxygen     39.83 %  O
             ______        ______ 
             100.00 %       99.59 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.9Zn0.6AlSi0.2Fe2+0.2Sn1.2Fe3+0.8Al9.7O22(OH)2
Help on Environment: Environment: The Mg-analog of nigerite. High temperature metasomatic tungsten ore. Fomerly named Pengzhizhongite-24R for Peng Zhizhong, late Chinese mineralogist.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Anhua area, Hunan, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the MAGNESIum analog of Ferronigerite. (S=Spinel, N=Nolanite Layers).
Help on Synonym: Synonym: IMA2001-A

Magnesionigerite-6N6S Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.42094
Help on Cell Dimensions: Cell Dimensions: a = 5.692, c = 13.78, Z = 1; V = 386.64 Den(Calc)= 4.14
Help on Crystal System: Crystal System: Trigonal Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.423(1), 2.846(0.9), 1.414(0.5),

Physical Properties of Magnesionigerite-6N6S

Help on Color: Color: Brown, Light yellow, Colorless.
Help on Density: Density: 4.22
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 8-8.5 - Between Topaz and Chrysoberyl
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Magnesionigerite-6N6S

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.045 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1952,KPDmeas= 0.1915,KC= 0.2005
Ncalc = 1.83 - 1.85
Help on Optical Data: Optical Data: Uniaxial (+), w=1.802, e=1.814, bire=0.0120.

Calculated Properties of Magnesionigerite-6N6S

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.97 gm/cc
note: Specific Gravity of Magnesionigerite-6N6S =4.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEMagnesionigerite-6N6S = 47.21 barns/electron
U=PEMagnesionigerite-6N6S x rElectron Density= 187.60 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Magnesionigerite-6N6S is Not Radioactive

Magnesionigerite-6N6S Classification

Help on  Dana Class: Dana Class: (07)Multiple Oxides
  (07.11)as titano-oxides with [4] and [6] substitutions
  (07.11.09)Nigerite Group (Sn>Ti) Magnesionigerite-6N6S! (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 Unk Trig Magnesionigerite-2N1S (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 P 3m 3 2/m
Help on  Strunz Class: Strunz Class: 04.FC.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.F - Hydroxides (without V or U)
  04.FC -Hydroxides with OH, without H2O; corner-sharing octahedra
04.FC.20 Ferronigerite-6N6S! (Fe,Zn)4Sn2(Al,Fe)15O30(OH)2 R 3m 3 2/m
04.FC.20 Ferronigerite-2N1S (Zn,Mg,Fe)(Sn,Zn)2(Al,Fe)12O22(OH)2 P 3m or P 3m1 3 2/m
04.FC.20 Magnesionigerite-6N6S! (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 Unk Trig
04.FC.20 Magnesionigerite-2N1S (Mg,Zn,Fe,Al)4(Sn,Fe)2Al10O22(OH)2 P 3m 3 2/m

Other Magnesionigerite-6N6S Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.76,p1728,1991) OPTIC PROP.(Am.Min.,Vol.76,p1728,1991)
Help on See Also: See Also: Links to other databases for Magnesionigerite-6N6S :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Magnesionigerite-6N6S using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Magnesionigerite-6N6S :

Ask about Magnesionigerite-6N6S here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa´┐Żol

Print or Cut-and-Paste your Magnesionigerite-6N6S Specimen Label here :


Dana No: Strunz No: 04.FC.20





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.