Stottite Mineral Data + Say STOTTITE

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General Stottite Information

Help on Chemical  Formula: Chemical Formula: Fe++Ge(OH)6
Help on Composition: Composition: Molecular Weight = 230.50 gm
   Iron       24.23 %  Fe   31.17 % FeO
   Germanium  31.50 %  Ge   45.38 % GeO2
   Hydrogen    2.62 %  H    23.45 % H2O
   Oxygen     41.65 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+Ge(OH)6
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1958
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 202596
  PDF 11-161
 

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Stottite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.98604
Help on Cell Dimensions: Cell Dimensions: a = 7.594, c = 7.488, Z = 4; V = 431.82 Den(Calc)= 3.55
Help on Crystal System: Crystal System: Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 41/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.767(1), 2.655(0.8), 1.687(0.7),
Click Here for Large Stottite Structure Window Crystal Structure:

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Help on Above


Ross C R , Bernstein L R , Waychunas G A , American Mineralogist , 73 (1988) p.657-661, Crystal-structure refinement of stottite, FeGe(OH)6

 

Physical Properties of Stottite

Help on Cleavage: Cleavage: [100] Good, [010] Good, [001] Distinct
Help on Color: Color: Brown, Colorless, Green.
Help on Density: Density: 3.596 - 3.61, Average = 3.6
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Greasy (Oily)
Help on Streak: Streak: gray white
 

Optical Properties of Stottite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.05 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.036 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2065,KPDmeas= 0.2034,KC= 0.2141
Help on Optical Data: Optical Data: Uniaxial (-), e=1.728, w=1.738, bire=0.0100.
 

Calculated Properties of Stottite

Help on Electron Density: Electron Density:

relectron=3.45 gm/cc
note: rStottite =3.55 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.02991
Boson Index = 0.97009
Help on Photoelectric: Photoelectric:

PEStottite = 26.12 barns/electron
U=PEStottite x relectron= 90.11 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stottite is Not Radioactive

 

Stottite Classification

Help on  Dana Class: Dana Class: 6.3.7.1 (6)Hydroxides and Oxides Containing Hydroxyl
  (6.3)with (OH)3 or (OH)6 groups
  (6.3.7)Wickmanite group (Tetragonal: P42/n)
 
6.3.7.1 Stottite FeGe(OH)6 P 41/n 4/m
 
6.3.7.2 Tetrawickmanite MnSn(OH)6 P 41/n 4/m
 
6.3.7.3 Jeanbandyite (Fe,Mn)Sn(OH)6 P 41/n 4/m
 
6.3.7.4 Mopungite NaSb(OH)6 P 41/n 4/m
Help on  Strunz Class: Strunz Class: IV/F.17-40 IV - Oxides
  IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure
  IV/F.17 - Stottite group, Mopungite - Stottite series
 
IV/F.17-10 Mopungite NaSb(OH)6 P 41/n 4/m
 
IV/F.17-20 Tetrawickmanite MnSn(OH)6 P 41/n 4/m
 
IV/F.17-30 Jeanbandyite (Fe,Mn)Sn(OH)6 P 41/n 4/m
 
IV/F.17-40 Stottite FeGe(OH)6 P 41/n 4/m
 
IV/F.17-50 Eyselite! FeGe3O7(OH) P*** Ortho
 

Other Stottite Information

Help on References: References: 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 Stottite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Stottite

Fe++Ge(OH)6
Dana No: 6.3.7.1 Strunz No: IV/F.17-40
Locality:

 

Notes:

 

 
   
 
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