| |
 |
Mawsonite Mineral Data
|
|
|
General Mawsonite Information
|
 Chemical Formula: |
Cu+6Fe+++2Sn++++S8 |
| Composition: |
Molecular Weight = 868.21 gm |
| |
Iron 12.86 % Fe |
| |
Copper 43.92 % Cu |
| |
Tin 13.67 % Sn |
| |
Sulfur 29.55 % S |
| |
______ |
| |
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 |
| |
PDF 29-557 |
| |
Mawsonite Image |
|
Images:
|
|
|
Images:
|
|
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
|
| 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), |
| |
Physical Properties of Mawsonite
|
| 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 |
| |
Optical Properties of Mawsonite
|
| 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 |
 |
∑ 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
|
| 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 |
| |
Mawsonite Classification
|
| 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 |
| 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
|
| 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
Search for Mawsonite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Mawsonite :
Ask about Mawsonite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Espaņol
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:
|
|
| |
| |
|
| |
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.
