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![Mineralogy Database Mineralogy Database](/images/Hedyphane_Crystal.gif) |
Mawsonite Mineral Data
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General Mawsonite Information
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Chemical Formula: |
Cu+6Fe+++2Sn++++S8 |
Composition: |
Molecular Weight = 868.21 gm |
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Iron 12.86 % Fe |
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Copper 43.92 % Cu |
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Tin 13.67 % Sn |
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Sulfur 29.55 % S |
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______ |
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100.00 % |
Empirical Formula: |
Cu6Fe3+2SnS8 |
Environment: |
In massive to disseminated hydrothermal copper ores within highly altered volcanic rocks of Cambrian age. |
IMA Status: |
Approved IMA 1965 |
Locality: |
Mt. Lyell, Tasmainia and Tingha, NSW, Australia. Link to MinDat.org Location Data. |
Name Origin: |
Named for Douglas Mawson (1882-1958), Australian geologist and Antarctic explorer. |
Name Pronunciation: |
Mawsonite + Pronunciation |
Synonym: |
ICSD 40047 |
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PDF 29-557 |
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Mawsonite Image |
Images:
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Images:
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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 |
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Mawsonite Crystallography
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Axial Ratios: |
a:c = 1:0.70472 |
Cell Dimensions: |
a = 7.603, c = 5.358, Z = 1; V = 309.72 Den(Calc)= 4.65 |
Crystal System: |
Tetragonal - Scalenohedral H-M Symbol (4 2m) Space Group: P 4m2 |
X Ray Diffraction: |
By Intensity(I/Io): 3.09(1), 1.895(0.8), 1.618(0.6), |
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Physical Properties of Mawsonite
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Cleavage: |
{???} Indistinct, {???} Indistinct |
Color: |
Brown orange, Bronze. |
Density: |
4.66 |
Diaphaneity: |
Opaque |
Habit: |
Inclusions - Generally found as inclusions in other minerals. |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Hardness: |
3.5-4 - Copper Penny-Fluorite |
Luster: |
Metallic |
Magnetism: |
Magnetic |
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Optical Properties of Mawsonite
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RL Anisotrophism: |
Very strong, from bright straw-yellow to bright royal blue to dark blue. |
RL Color: |
Brownish orange. |
RL Pleochroism: |
Strong, orange to brown with slight orange tint. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Mawsonite in Air
λ |
R1 |
R2 |
![](../images/Reflect_scale_v.gif) |
∑ R1(λ) |
∑ R2(λ) |
400 nm |
9.50 |
12.20 |
![](../images/400nm.BMP)
![](../images/400nm.BMP) |
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420 nm |
10.50 |
13.50 |
![](../images/420nm.BMP)
![](../images/420nm.BMP) |
440 nm |
11.50 |
14.80 |
![](../images/440nm.BMP)
![](../images/440nm.BMP) |
460 nm |
13.00 |
16.30 |
![](../images/460nm.BMP)
![](../images/460nm.BMP) |
480 nm |
14.60 |
18.00 |
![](../images/480nm.BMP)
![](../images/480nm.BMP) |
500 nm |
16.50 |
19.80 |
![](../images/500nm.BMP)
![](../images/500nm.BMP) |
520 nm |
18.50 |
21.60 |
![](../images/520nm.BMP)
![](../images/520nm.BMP) |
540 nm |
20.60 |
23.00 |
![](../images/540nm.BMP)
![](../images/540nm.BMP) |
560 nm |
23.00 |
24.50 |
![](../images/560nm.BMP)
![](../images/560nm.BMP) |
580 nm |
25.60 |
25.80 |
![](../images/580nm.BMP)
![](../images/580nm.BMP) |
600 nm |
28.20 |
27.00 |
![](../images/600nm.BMP)
![](../images/600nm.BMP) |
620 nm |
30.00 |
28.00 |
![](../images/620nm.BMP)
![](../images/620nm.BMP) |
640 nm |
31.50 |
29.00 |
![](../images/640nm.BMP)
![](../images/640nm.BMP) |
660 nm |
32.90 |
29.90 |
![](../images/660nm.BMP)
![](../images/660nm.BMP) |
680 nm |
34.20 |
30.70 |
![](../images/680nm.BMP)
![](../images/680nm.BMP) |
700 nm |
35.20 |
31.50 |
![](../images/700nm.BMP)
![](../images/700nm.BMP) |
Calculated Relative Intensity Colors of Mawsonite in Air
Relative Intensity |
0% |
80% |
100% |
160% |
240% |
320% |
400% |
480% |
560% |
640% |
710% |
R1 |
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R2 |
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Calculated Properties of Mawsonite
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Electron Density: |
Bulk Density (Electron Density)=4.33 gm/cc note: Specific Gravity of Mawsonite =4.65 gm/cc. |
Fermion Index: |
Fermion Index = 0.02 Boson Index = 0.98 |
Photoelectric: |
PEMawsonite = 65.95 barns/electron U=PEMawsonite x rElectron Density= 285.41 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Mawsonite is Not Radioactive |
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Mawsonite Classification
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Dana Class: |
02.09.03.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.09)where Am Bn Xp, with (m+n):p=1:1 |
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(02.09.03)Mawsonite Group |
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02.09.03.01 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m |
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02.09.03.02 Chatkalite Cu6FeSn2S8 P 4m2 4 2m |
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02.09.03.03 Stannoidite Cu8Fe3Sn2S12 I 222 2 2 2 |
Strunz Class: |
02.CB.20 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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02.CB.20 Chatkalite Cu6FeSn2S8 P 4m2 4 2m |
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02.CB.20 Mawsonite Cu6Fe2SnS8 P 4m2 4 2m |
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Other Mawsonite Information
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References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
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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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:
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