Mineralogy Database

Stannite Mineral Data

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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 Name Pronunciation: Name Pronunciation: Stannite Say STANNITE
Help on Synonym: Synonym: Bell metal ore
  ICSD 200420
  PDF 44-1476
  Tin pyrites
  Volfsonite
 

Stannite Image

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  Stannite   Volfsonite

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

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  Zinkenite   Stannite

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

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  Stannite   Volfsonite

Comments: Bluish-black octahedron of stannite (also known as volfsonite).
Location: Yaogangxian Wolfram mine, Yizhang County, Hunan Province, China. Scale: See Image.
© Rruff Database

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 - Scalenohedral H-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:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 1 2) ( 0 1 2) ( 1 1 0) ( 0 0 1)

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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 Diaphaneity: Diaphaneity: 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: Non-fluorescent.
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: Bulk Density (Electron Density)=4.12 gm/cc
note: Specific Gravity of Stannite =4.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEStannite = 101.81 barns/electron
U=PEStannite x rElectron Density= 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: 02.09.02.01 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.02)Stannite Group (Tetragonal: I-42m) A2BCS type
 
02.09.02.01 Stannite Cu2FeSnS4 I 42m 4 2m
 
02.09.02.02 Cernyite Cu2CdSnS4 I 42m 4 2m
 
02.09.02.03 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m
 
02.09.02.04 Kuramite Cu3SnS4 I 42m 4 2m
 
02.09.02.05 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 432, P 43m, or P m3m Cubic
 
02.09.02.06 Hocartite Ag2FeSnS4 I 42m 4 2m
 
02.09.02.07 Pirquitasite Ag2ZnSnS4 I 42m 4 2m
 
02.09.02.08 Velikite Cu2HgSnS4 I 42m 4 2m
 
02.09.02.09 Kesterite Cu2(Zn,Fe)SnS4 I 4 4
 
02.09.02.10 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m
 
02.09.02.11 Barquillite! Cu2CdGeS4 I 42m 4 2m
Help on  Strunz Class: Strunz Class: 02.CB.15a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CB -With Zn, Fe, Cu, Ag, Au, etc
 
02.CB.15a Cernyite Cu2CdSnS4 I 42m 4 2m
 
02.CB.15a Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m
 
02.CB.15a Kesterite Cu2(Zn,Fe)SnS4 I 4 4
 
02.CB.15a Hocartite Ag2FeSnS4 I 42m 4 2m
 
02.CB.15a Idaite Cu5FeS6 P 63/mmc 6/m 2/m 2/m
 
02.CB.15a Kuramite Cu3SnS4 I 42m 4 2m
 
02.CB.15a Pirquitasite Ag2ZnSnS4 I 42m 4 2m
 
02.CB.15a Stannite Cu2FeSnS4 I 42m 4 2m
 
02.CB.15a Velikite Cu2HgSnS4 I 42m 4 2m
 

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 - 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
15 - WWW-MINCRYST

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

Stannite

Cu2FeSnS4
Dana No: 02.09.02.01 Strunz No: 02.CB.15a
Locality:

 

Notes:

 

 
   
 


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