| |
 |
Kesterite Mineral Data
|
|
|
General Kesterite Information
|
 Chemical Formula: |
Cu2(Zn,Fe)SnS4 |
| Composition: |
Molecular Weight = 472.68 gm |
| |
Zinc 10.38 % Zn |
| |
Iron 2.95 % Fe |
| |
Copper 26.89 % Cu |
| |
Tin 32.65 % Sn |
| |
Sulfur 27.14 % S |
| |
______ |
| |
100.00 % |
| Empirical Formula: |
Cu2Zn0.75Fe2+0.25Sn1.3S4 |
| Environment: |
In quartz-sulfide hydrothermal veinlets in tin deposits. |
| IMA Status: |
Valid Species (Pre-IMA) 1958 |
| Locality: |
Kester deposit, Yano-Adychansk region, Yakutia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Kesterite + Pronunciation  |
| Synonym: |
ICSD 200419 |
| |
PDF 45-688 |
| |
Pandaite |
| |
Kesterite Image |
|
Images:
|
|
Kesterite Mushistonite
Comments: Sharp, kesterite crystal, greenish in color due to a mushistonite coating with clear, prismatic beryl crystals.
Location: Xue Bao Diang Mountains, north of Pingwu, Sichuan Province, China.
Scale: Crystal size 1 cm.
© Dan Weinrich |
|
Kesterite Crystallography
|
| Axial Ratios: |
a:c = 1:2 |
| Cell Dimensions: |
a = 5.44, c = 10.88, Z = 2; V = 321.98 Den(Calc)= 4.88 |
| Crystal System: |
Tetragonal - Disphenoidal H-M Symbol (4) Space Group: I 4 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.15(1), 1.93(0.7), 1.65(0.5), |
| |
Physical Properties of Kesterite
|
| Cleavage: |
None |
| Color: |
Greenish black. |
| Density: |
4.54 - 4.59, Average = 4.56 |
| Diaphaneity: |
Opaque |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luster: |
Metallic |
| Streak: |
black |
| |
Optical Properties of Kesterite
|
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Kesterite in Air
| λ |
R1 |
R2 |
 |
∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
23.60 |
24.20 |
|
|
|
| 420 nm |
24.00 |
24.80 |
|
| 440 nm |
24.40 |
25.40 |
|
| 460 nm |
24.50 |
25.60 |
|
| 480 nm |
24.40 |
25.20 |
|
| 500 nm |
24.10 |
24.80 |
|
| 520 nm |
23.80 |
24.50 |
|
| 540 nm |
23.40 |
24.30 |
|
| 560 nm |
23.20 |
24.20 |
|
| 580 nm |
23.20 |
24.10 |
|
| 600 nm |
23.20 |
24.20 |
|
| 620 nm |
23.30 |
24.20 |
|
| 640 nm |
23.40 |
24.40 |
|
| 660 nm |
23.60 |
24.60 |
|
| 680 nm |
23.80 |
24.80 |
|
| 700 nm |
24.20 |
25.20 |
|
Calculated Relative Intensity Colors of Kesterite in Air
Relative
Intensity |
0% |
40% |
80% |
100% |
120% |
160% |
200% |
240% |
280% |
320% |
360% |
380% |
| R1 |
|
|
|
|
|
|
|
|
|
|
|
|
| R2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Calculated Properties of Kesterite
|
| Electron Density: |
Bulk Density (Electron Density)=4.46 gm/cc
note: Specific Gravity of Kesterite =4.88 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.06
Boson Index = 0.94 |
| Photoelectric: |
PEKesterite = 118.62 barns/electron
U=PEKesterite x rElectron Density= 529.06 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kesterite is Not Radioactive |
| |
Kesterite Classification
|
| Dana Class: |
02.09.02.09 (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 |
| 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 Kesterite Information
|
| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(AntBidBlaNic1) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Kesterite :
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 Kesterite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Kesterite :
Ask about Kesterite 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 Kesterite Specimen Label here :
|
Kesterite
Cu2(Zn,Fe)SnS4
Dana No: 02.09.02.09 Strunz No: 02.CB.15a
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.