Kesterite * Cu2(Zn/Fe)SnS4 * I-4 
5.427 5.427 10.871 90 90 90 I 8 N 
Cu 0.0 0.0 0.00 1.2 10 
Cu 0.0 0.5 0.25 1.2 10 
ZnFe .5 0 .25 1.2 12 
Sn .5 .5 0  1.4 13
S .256 .256 .3722 1 6 
S .244 .243 .8722 1 6
S .243 .756 .1278 1 6 
S .756 .244 .1278 1 6