Stannite Mineral Data + Say STANNITE


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General Stannite Information
Help on Chemical Formula: Chemical Formula: Cu2FeSnS4
Help on Composition: Composition: Molecular Weight = 429.91 gm
   Iron    12.99 %  Fe
   Copper  29.56 %  Cu
   Tin     27.61 %  Sn
   Sulfur  29.83 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Cu2Fe2+SnS4
Help on Environment: Environment: In tin-bearing, hydrothermal vein deposits
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1832
Help on Locality: Locality: Cornwall at Wheal Rock near St. Agnes. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Latin stannum - "tin."
Help on Synonym: Synonym: Bell metal ore
  ICSD 200420
  PDF 44-1476
  Tin pyrites
 

Stannite Image

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Stannite

Comments: Stannite crystal cluster at the base of a quartz crystal.
Location: Yaogangxian mine, Hunan, China. Scale: Crystal size 3 cm.
© John Attard
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Stannite   Zinkenite

Comments: Acicular crystals of zinkenite perched on a twinned, crystal of stannite.
Location: Mina San Jos?, Oruro, Bolivia. Scale: 4 x 2.3 x 1.7 cm.
© Fabre Minerals

Stannite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.9708
Help on Cell Dimensions: Cell Dimensions: a = 5.4531, c = 10.747, Z = 2; V = 319.58 Den(Calc)= 4.47
Help on Crystal System: Crystal System: Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.134(1), 1.9145(0.3), 1.9288(0.25),
Help on Forms: Forms:

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Forms: [ 1 1 2] [ 0 1 2] [ 1 1 0] [ 0 0 1]

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Hall S R , Szymanski J T , Stewart J M , The Canadian Mineralogist , 16 (1978) p.131-137, Kesterite, Cu2(Zn,Fe)SnS4, and stannite, Cu2(Fe,Zn)SnS4,, structurally similar but distinct minerals

View Additional jPOWD Structure files for Stannite
[1] [2] [3] [4]
 

Physical Properties of Stannite

Help on Cleavage: Cleavage: [110] Imperfect
Help on Color: Color: Blue, Grayish black, Steel gray.
Help on Density: Density: 4.3 - 4.5, Average = 4.4
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: black
 

Optical Properties of Stannite

Help on RL Anisotrophism: RL Anisotrophism: Distinct , in violet and slate-green.
Help on RL Color: RL Color: Gray with olive-green tint.
Help on RL Pleochroism: RL Pleochroism: Indistinct in air, distinct in oil.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Stannite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   18.50   20.40 
   
 420 nm   20.00   22.00 
 440 nm   21.50   23.60 
 460 nm   23.00   24.90 
 480 nm   24.30   26.00 
 500 nm   25.50   27.10 
 520 nm   26.50   28.00 
 540 nm   27.40   28.60 
 560 nm   28.00   29.00 
 580 nm   28.60   29.40 
 600 nm   28.80   29.50 
 620 nm   29.00   29.50 
 640 nm   28.80   29.20 
 660 nm   28.20   28.60 
 680 nm   27.60   27.80 
 700 nm   26.40   26.80 
Calculated Relative Intensity Colors of Stannite in Air
Relative
Intensity		    0%   50% 100% 150% 200% 250% 300% 350% 400%
R1                  
R2                  
 

Calculated Properties of Stannite

Help on Electron Density: Electron Density:

relectron=4.12 gm/cc
note: rStannite =4.47 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.05088
Boson Index = 0.94912
Help on Photoelectric: Photoelectric:

PEStannite = 101.81 barns/electron
U=PEStannite x relectron= 419.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Stannite is Not Radioactive
 

Stannite Classification
Help on Dana Class: Dana Class: 2.9.2.1 (2)Sulfides - Including Selenides and Tellurides
  (2.9)where Am Bn Xp, with (m+n):p=1:1
  (2.9.2)Stannite Group (Tetragonal: I4¯2m) A2BCS type
 
2.9.2.1 Stannite Cu2FeSnS4 I 42m 4 2m
 
2.9.2.2 Cernyite Cu2CdSnS4 I 42m 4 2m
 
2.9.2.3 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m
 
2.9.2.4 Kuramite Cu3SnS4 I 42m 4 2m
 
2.9.2.5 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic
 
2.9.2.6 Hocartite Ag2FeSnS4 I 42m 4 2m
 
2.9.2.7 Pirquitasite Ag2ZnSnS4 I 42m 4 2m
 
2.9.2.8 Velikite Cu2HgSnS4 I 42m 4 2m
 
2.9.2.9 Kesterite Cu2(Zn,Fe)SnS4 I 4 4
 
2.9.2.10 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m
 
2.9.2.11 Barquillite! Cu2CdGeS4 I 42m 4 2m
Help on Strunz Class: Strunz Class: II/C.06-60 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.06 - Stannite group
 
II/C.06-10 Luzonite Cu3AsS4 I 42m 4 2m
 
II/C.06-20 Famatinite Cu3SbS4 I 42m 4 2m
 
II/C.06-30 Permingeatite Cu3SbSe4 I 42m 4 2m
 
II/C.06-40 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m
 
II/C.06-45 Barquillite! Cu2CdGeS4 I 42m 4 2m
 
II/C.06-50 Kuramite Cu3SnS4 I 42m 4 2m
 
II/C.06-60 Stannite Cu2FeSnS4 I 42m 4 2m
 
II/C.06-70 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m
 
II/C.06-80 Kesterite Cu2(Zn,Fe)SnS4 I 4 4
 
II/C.06-90 Cernyite Cu2CdSnS4 I 42m 4 2m
 
II/C.06-100 Velikite Cu2HgSnS4 I 42m 4 2m
 
II/C.06-110 Hocartite Ag2FeSnS4 I 42m 4 2m
 
II/C.06-120 Pirquitasite Ag2ZnSnS4 I 42m 4 2m
 
II/C.06-130 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic
 
II/C.06-140 Petrukite (Cu,Fe,Zn)2(Sn,In)S4 P mn21 mm2
 
II/C.06-150 Rhodostannite Cu2FeSn3S8 I 41/a 4/m
 
II/C.06-160 Toyohaite Ag2FeSn3S8 I 41/a 4/m
 

Other Stannite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Stannite :
1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Stannite

Cu2FeSnS4
Dana No: 2.9.2.1 Strunz No: II/C.06-60
Locality:

 

Notes:

 
 
   
 
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