Kesterite Mineral Data

Kesterite Mineral Data +

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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:

Cu₂Zn_0.75Fe²⁺_0.25Sn_1.3S₄

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.

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 - DisphenoidalH-M Symbol (4) Space Group: I 4

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.15(1), 1.93(0.7), 1.65(0.5),

Crystal Structure:

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drag2 - RMB Resize/Rotate
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Hall S R , Szymanski J T , Stewart J M , The Canadian Mineralogist , 16 (1978) p.131-137, Kesterite, Cu2(Zn,Fe)SnS4, and stannite, Cu2(Fe,Zn)SnS4,, structurally similar but distinct minerals

View Additional jPOWD Structure files for Kesterite
[1] [2] [3]

Physical Properties of Kesterite

Cleavage:

None

Color:

Greenish black.

Density:

4.54 - 4.59, Average = 4.56

Diaphaniety:

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:

r_electron=4.46 gm/cc
note: r_Kesterite=4.88 gm/cc.

Fermion Index

Fermion Index = 0.06117
Boson Index = 0.93883

Photoelectric:

PE_Kesterite= 118.62 barns/electron
U=PE_Kesterite x r_electron= 529.06 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kesterite is Not Radioactive

Kesterite Classification

Dana Class:

2.9.2.9 (2)Sulfides - Including Selenides and Tellurides

(2.9)where Am Bn Xp, with (m+n):p=1:1

(2.9.2)Stannite Group (Tetragonal: I4¯2m) A2BCS type

2.9.2.1 Stannite Cu2FeSnS4 I 42m 4 2m

2.9.2.2 Cernyite Cu2CdSnS4 I 42m 4 2m

2.9.2.3 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m

2.9.2.4 Kuramite Cu3SnS4 I 42m 4 2m

2.9.2.5 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 4₃2, P 43m, or P m3m Cubic

2.9.2.6 Hocartite Ag2FeSnS4 I 42m 4 2m

2.9.2.7 Pirquitasite Ag2ZnSnS4 I 42m 4 2m

2.9.2.8 Velikite Cu2HgSnS4 I 42m 4 2m

2.9.2.9 Kesterite Cu2(Zn,Fe)SnS4 I 4 4

2.9.2.10 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m

2.9.2.11 Barquillite! Cu2CdGeS4 I 42m 4 2m

Strunz Class:

II/C.06-80 II - Sulfides and sulphosalts

II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1

II/C.06 - Stannite group

II/C.06-10 Luzonite Cu3AsS4 I 42m 4 2m

II/C.06-20 Famatinite Cu3SbS4 I 42m 4 2m

II/C.06-30 Permingeatite Cu3SbSe4 I 42m 4 2m

II/C.06-40 Briartite Cu2(Zn,Fe)GeS4 I 42m 4 2m

II/C.06-45 Barquillite! Cu2CdGeS4 I 42m 4 2m

II/C.06-50 Kuramite Cu3SnS4 I 42m 4 2m

II/C.06-60 Stannite Cu2FeSnS4 I 42m 4 2m

II/C.06-70 Ferrokesterite Cu2(Fe,Zn)SnS4 I 42m 4 2m

II/C.06-80 Kesterite Cu2(Zn,Fe)SnS4 I 4 4

II/C.06-90 Cernyite Cu2CdSnS4 I 42m 4 2m

II/C.06-100 Velikite Cu2HgSnS4 I 42m 4 2m

II/C.06-110 Hocartite Ag2FeSnS4 I 42m 4 2m

II/C.06-120 Pirquitasite Ag2ZnSnS4 I 42m 4 2m

II/C.06-130 Sakuraiite (Cu,Zn,Fe,In,Sn)4S4 P 4₃2, P 43m, or P m3m Cubic

II/C.06-140 Petrukite (Cu,Fe,Zn)2(Sn,In)S4 P mn2₁ mm2

II/C.06-150 Rhodostannite Cu2FeSn3S8 I 4₁/a 4/m

II/C.06-160 Toyohaite Ag2FeSn3S8 I 4₁/a 4/m

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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

Kesterite

Cu2(Zn,Fe)SnS4
Dana No: 2.9.2.9 Strunz No: II/C.06-80
Locality:

Notes: