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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
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