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Tetrawickmanite Mineral Data

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General Tetrawickmanite Information

Help on Chemical  Formula: Chemical Formula: Mn++Sn++++(OH)6
Help on Composition: Composition: Molecular Weight = 275.69 gm
   Manganese  19.93 %  Mn   25.73 % MnO
   Tin        43.06 %  Sn   54.67 % SnO2
   Hydrogen    2.19 %  H    19.60 % H2O
   Oxygen     34.82 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Sn(OH)6
Help on IMA Status: IMA Status: Approved IMA 1973
Help on Locality: Locality: Foote Quarry, Kings Mountain, Cleveland County, North Carolina, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the tetragonal analog of wickmanite.
Help on Name Pronunciation: Name Pronunciation: Tetrawickmanite + Pronunciation Say TETRAWICKMANITE

Tetrawickmanite Image

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Comments: Tan, pseudoctahedral crystal of tetrawickmanite on matrix.
Location: Foote mine, Kings Mountain, Cleveland County, North Carolina, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tetrawickmanite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.00128
Help on Cell Dimensions: Cell Dimensions: a = 7.787, c = 7.797, Z = 4; V = 472.79 Den(Calc)= 3.87
Help on Crystal System: Crystal System: Tetragonal - Dipyramidal H-M Symbol (4/m) Space Group: P 41/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.94(1), 2.77(0.9), 1.76(0.5),

Physical Properties of Tetrawickmanite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown orange, Honey yellow.
Help on Density: Density: 3.65
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Pseudo Cubic - Crystals show a cubic outline.
Help on Hardness: Hardness: 3.5-4.5 - Between Copper Penny and Fluorite-Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Tetrawickmanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.046 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1866,KPDmeas= 0.1978,KC= 0.1955
Ncalc = 1.71 - 1.76
Help on Optical Data: Optical Data: Uniaxial (-), e=1.72, w=1.724, bire=0.0040.

Calculated Properties of Tetrawickmanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.42 gm/cc
note: Specific Gravity of Tetrawickmanite =3.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PETetrawickmanite = 132.04 barns/electron
U=PETetrawickmanite x rElectron Density= 451.02 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tetrawickmanite is Not Radioactive

Tetrawickmanite Classification

Help on  Dana Class: Dana Class: (06)Hydroxides and Oxides Containing Hydroxyl
  (06.03)with (OH)3 or (OH)6 groups
  (06.03.07)Wickmanite group (Tetragonal: P42/n) Stottite FeGe(OH)6 P 41/n 4/m Tetrawickmanite MnSn(OH)6 P 41/n 4/m Jeanbandyite (Fe,Mn)Sn(OH)6 P 41/n 4/m Mopungite NaSb(OH)6 P 41/n 4/m
Help on  Strunz Class: Strunz Class: 04.FC.15 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.15 Jeanbandyite (Fe,Mn)Sn(OH)6 P 41/n 4/m
04.FC.15 Mopungite NaSb(OH)6 P 41/n 4/m
04.FC.15 Stottite FeGe(OH)6 P 41/n 4/m
04.FC.15 Tetrawickmanite MnSn(OH)6 P 41/n 4/m

Other Tetrawickmanite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Tetrawickmanite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 04.FC.15





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