Mawsonite Mineral Data

Mawsonite Mineral Data
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General Mawsonite Information

Help on Chemical Formula: Chemical Formula: Cu+6Fe+++2Sn++++S8
Help on Composition: Composition: Molecular Weight = 868.21 gm
   Iron    12.86 %  Fe
   Copper  43.92 %  Cu
   Tin     13.67 %  Sn
   Sulfur  29.55 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6Fe3+2SnS8
Help on Environment: Environment: In massive to disseminated hydrothermal copper ores within highly altered volcanic rocks of Cambrian age.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Mt. Lyell, Tasmainia and Tingha, NSW, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Douglas Mawson (1882-1958), Australian geologist and Antarctic explorer.
Help on Name Pronunciation: Name Pronunciation: Mawsonite + Pronunciation Say MAWSONITE
Help on Synonym: Synonym: ICSD 40047
  PDF 29-557
 

Mawsonite Image

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Mawsonite

Comments: Mawsonite inclusions in brassy yellow chalcopyrite.
Location: Mount Lyell, Queenstown, Tasmania, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
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Mawsonite

Comments: Polished Secton (PPL) showing traces of digenite (dig) throughout massive bornite (bn). A large grain of mawsonite (mw) is present at the bottom right.
Location: Kidd Creek Volcanogenic Massive Sulfide deposit, Western Abitibi Subprovince, Timmins, Ontario, Canada. Scale: Picture Size 0.5 mm.
© National Resouces of Canada

Mawsonite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.70472
Help on Cell Dimensions: Cell Dimensions: a = 7.603, c = 5.358, Z = 1; V = 309.72 Den(Calc)= 4.65
Help on Crystal System: Crystal System: Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: P 4m2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.09(1), 1.895(0.8), 1.618(0.6),
Click Here for Large Mawsonite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Szymanski J T , The Canadian Mineralogist , 14 (1976) p.529-535, The crystal structure of mawsonite, Cu6Fe2SnS8

 

Physical Properties of Mawsonite

Help on Cleavage: Cleavage: {???} Indistinct, {???} Indistinct
Help on Color: Color: Brown orange, Bronze.
Help on Density: Density: 4.66
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Magnetic
 

Optical Properties of Mawsonite

Help on RL Anisotrophism: RL Anisotrophism: Very strong, from bright straw-yellow to bright royal blue to dark blue.
Help on RL Color: RL Color: Brownish orange.
Help on RL Pleochroism: RL Pleochroism: Strong, orange to brown with slight orange tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Mawsonite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm    9.50   12.20 
   
 420 nm   10.50   13.50 
 440 nm   11.50   14.80 
 460 nm   13.00   16.30 
 480 nm   14.60   18.00 
 500 nm   16.50   19.80 
 520 nm   18.50   21.60 
 540 nm   20.60   23.00 
 560 nm   23.00   24.50 
 580 nm   25.60   25.80 
 600 nm   28.20   27.00 
 620 nm   30.00   28.00 
 640 nm   31.50   29.00 
 660 nm   32.90   29.90 
 680 nm   34.20   30.70 
 700 nm   35.20   31.50 
Calculated Relative Intensity Colors of Mawsonite in Air
Relative
Intensity		    0%   80% 100% 160% 240% 320% 400% 480% 560% 640% 710%
R1                      
R2                      
 

Calculated Properties of Mawsonite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.33 gm/cc
note: Specific Gravity of Mawsonite =4.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEMawsonite = 65.95 barns/electron
U=PEMawsonite x rElectron Density= 285.41 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mawsonite is Not Radioactive
 

Mawsonite Classification
Help on Dana Class: Dana Class: 02.09.03.01 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.03)Mawsonite Group
 
02.09.03.01 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m
 
02.09.03.02 Chatkalite Cu6FeSn2S8 P 4m2 4 2m
 
02.09.03.03 Stannoidite Cu8Fe3Sn2S12 I 222 2 2 2
Help on Strunz Class: Strunz Class: 02.CB.20 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.20 Chatkalite Cu6FeSn2S8 P 4m2 4 2m
 
02.CB.20 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m
 

Other Mawsonite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Mawsonite :
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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Ask about Mawsonite here :
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Print or Cut-and-Paste your Mawsonite Specimen Label here :

Mawsonite

Cu+6Fe+++2Sn++++S8
Dana No: 02.09.03.01 Strunz No: 02.CB.20
Locality:

 

Notes: