Mineralogy Database

Schoenfliesite Mineral Data

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General Schoenfliesite Information

Help on Chemical  Formula: Chemical Formula: MgSn++++(OH)6
Help on Composition: Composition: Molecular Weight = 245.06 gm
   Magnesium   9.92 %  Mg   16.45 % MgO
   Tin        48.44 %  Sn   61.50 % SnO2
   Hydrogen    2.47 %  H    22.05 % H2O
   Oxygen     39.17 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: MgSn(OH)6
Help on Environment: Environment: Secondary mineral in oxidized tin-bearing materials.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Brooks Mountain, Seward Peninsula, Alaska. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Arthur Moritz Schoenflies (1853-1928), professor of mathematics, University of Frankfurt.
Help on Name Pronunciation: Name Pronunciation: Schoenfliesite + Pronunciation Say SCHOENFLIESITE
Help on Synonym: Synonym: ICSD 25824
  PDF 27-Sep

Schoenfliesite Image

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Comments: Yellow-brown schoenfliesite on matrix.
Location: Zlaty Kopec, Jáchymov (St Joachimsthal), Krusné Hory (Erzgebirge), Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Schoenfliesite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 7.759, Z = 4; V = 467.11 Den(Calc)= 3.48
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: P n3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.88(1), 4.48(0.5), 2.74(0.25),

Physical Properties of Schoenfliesite

Help on Cleavage: Cleavage: None
Help on Color: Color: Reddish brown.
Help on Density: Density: 3.483
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Schoenfliesite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.135 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.134 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1695,KPDmeas= 0.1694,KC= 0.1958
Ncalc = 1.68
Help on Optical Data: Optical Data: Isotropic, n=1.59.

Calculated Properties of Schoenfliesite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.29 gm/cc
note: Specific Gravity of Schoenfliesite =3.48 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PESchoenfliesite = 141.23 barns/electron
U=PESchoenfliesite x rElectron Density= 465.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Schoenfliesite is Not Radioactive

Schoenfliesite Classification

Help on  Dana Class: Dana Class: (06)Hydroxides and Oxides Containing Hydroxyl
  (06.03)with (OH)3 or (OH)6 groups
  (06.03.06)Wickmanite group (Cubic or Trigonal, 2+ cations containing Sn) Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m Schoenfliesite MgSn(OH)6 P n3 2/m 3 Natanite FeSn(OH)6 P n3m 4/m 3 2/m Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m Burtite CaSn(OH)6 R 3 3 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 04.FC.10 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.10 Burtite CaSn(OH)6 R 3 3
04.FC.10 Mushistonite (Cu,Zn,Fe)Sn(OH)6 P n3m 4/m 3 2/m
04.FC.10 Natanite FeSn(OH)6 P n3m 4/m 3 2/m
04.FC.10 Vismirnovite ZnSn(OH)6 P n3m 4/m 3 2/m
04.FC.10 Schoenfliesite MgSn(OH)6 P n3 2/m 3
04.FC.10 Wickmanite MnSn(OH)6 P n3m 4/m 3 2/m

Other Schoenfliesite 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 Schoenfliesite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 04.FC.10





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