ZnS (mineral sphalerite) 
Original form Querry (1987)
Compiled by H. R. Wakeford 2013
Citation for use this data: Wakeford & Sing (2015) 

wavelength		n			k
166.6667 3.008	0.036  
125.0000 3.029	0.049  
100.0000 3.058	0.063  
83.3333 3.097 	0.079  
71.4286 3.150 	0.098  
62.5000 3.223 	0.120  
55.5556 3.324 	0.151  
50.0000 3.465 	0.173  
45.4545 3.709 	0.171  
41.6667 4.347 	0.153  
38.4615 6.369 	1.269 
35.7143 2.653 	5.788 
33.3333 0.702 	3.451  
31.2500 0.107 	2.072  
29.4118 0.093 	0.944   
27.7778 0.865 	0.097 
26.3158 1.296 	0.066  
25.0000 1.507 	0.048  
23.8095 1.648 	0.037  
22.7273 1.751 	0.028 
21.7391 1.828 	0.027 
20.8333 1.883 	0.029  
20.0000 1.923 	0.026 
19.2308 1.960 	0.018 
18.5185 1.995 	0.016 
17.8571 2.021 	0.017 
17.2414 2.042 	0.019   
16.6667 2.059 	0.019  
16.1290 2.074 	0.018 
15.6250 2.086 	0.017  
15.1515 2.097 	0.016  
14.7059 2.107 	0.014 
14.2857 2.116 	0.012 
13.8889 2.125 	0.010 
13.5135 2.133 	0.007
13.1579 2.141 	0.006 
12.8205 2.149 	0.006 
12.5000 2.155 	0.005 
12.1951 2.161 	0.004 
11.9048 2.167 	0.004 
11.6279 2.172 	0.003 
11.3536 2.176 	0.003 
11.1111 2.180 	0.002  
10.8696 2.185 	0.002 
10.6383 2.189 	0.002  
10.4167 2.192 	0.002  
10.2041 2.196	0.002 
10.0000 2.199 	0.002 
9.8039 2.201 	0.002 
9.6154 2.204	0.003 
9.4340 2.207 	0.003
9.2593 2.209 	0.003
9.0909 2.211 	0.003
8.9286 2.213 	0.003
8.7719 2.214 	0.003
8.6207 2.216 	0.003
8.4746 2.217 	0.004
8.3333 2.219 	0.004
8.1967 2.220 	0.004
8.0645 2.221 	0.003
7.9365 2.223 	0.003
7.8125 2.224 	0.003
7.6923 2.225 	0.003
7.5758 2.226 	0.003
7.4627 2.227 	0.003
7.3529 2.228 	0.003
7.2464 2.229 	0.003
7.1429 2.229 	0.003
7.0423 2.230 	0.003
6.9444 2.231 	0.003
6.8493 2.232 	0.002
6.7568 2.232 	0.002
6.6667 2.233 	0.002
6.5789 2.234 	0.002
6.4935 2.234 	0.002
6.4103 2.235 	0.002
6.3291 2.235 	0.001
6.2500 2.236 	0.001
6.1728 2.236 	0.001
6.0976 2.237 	0.001
6.0241 2.238 	0.0005
5.9524 2.239 	0.0005
5.8824 2.239 	0.0005
5.8140 2.240 	0.0005
5.7471 2.241 	0.0005
5.6818 2.242 	0.0005
5.6180 2.242 	0.0005
5.5556 2.243 	0.0005
5.4945 2.244 	0.0005
5.4348 2.244 	0.0005
5.3763 2.245 	0.0005
5.3191 2.246 	0.0005
5.2632 2.246 	0.0005
5.2083 2.246 	0.0005
5.1546 2.247 	0.0005
5.1020 2.247 	0.001
5.0505 2.247 	0.001
5.0000 2.248 	0.001
4.9505 2.248 	0.0005
4.9020 2.248	0.0005
4.8544 2.249 	0.0005
4.8077 2.249 	0.001
4.7619 2.249 	0.001
4.7170 2.249 	0.001
4.6729 2.250 	0.001
4.6296 2.250 	0.001
4.5872 2.250 	0.001
4.5455 2.250 	0.001
4.5045 2.250 	0.001
4.4643 2.250 	0.001
4.4248 2.251 	0.001
4.3860 2.251 	0.001
4.3478 2.251 	0.0005
4.3103 2.252 	0.0005
4.2735 2.252 	0.0005
4.2017 2.253 	0.0005
4.1667 2.253 	0.0005
4.1322 2.254 	0.0005
4.0984 2.254 	0.0005
4.0650 2.254 	0.0005
4.0323 2.255 	0.0005
4.0000 2.255 	0.0005
3.9683 2.255 	0.0005
3.9370 2.256 	0.0005
3.9063 2.256 	0.0005
3.8760 2.256 	0.001
3.8462 2.256 	0.001
3.8168 2.256 	0.001
3.7879 2.256 	0.001
3.7594 2.257 	0.001
3.7313 2.257 	0.001
3.7037 2.257 	0.001
3.6765 2.257 	0.001
3.6496 2.257 	0.001
3.6232 2.257 	0.001
3.5971 2.257 	0.001
3.5714 2.258 	0.001
3.5461 2.258 	0.001
3.5211 2.258 	0.001
3.4965 2.258 	0.001
3.4722 2.258 	0.001
3.4483 2.258 	0.001
3.4247 2.258 	0.001
3.4014 2.259 	0.001
3.3784 2.259 	0.001
3.3557 2.259 	0.001
3.3333 2.259 	0.001
3.3113 2.259 	0.001
3.2895 2.259 	0.001
3.2680 2.259 	0.001
3.2468 2.260 	0.0005
3.2258 2.268 	0.001
3.2051 2.260 	0.0005
3.1847 2.260 	0.001
3.1646 2.260 	0.001
3.1447 2.260 	0.001
3.1250 2.261 	0.001
3.1056 2.261 	0.0005
3.0864 2.261 	0.0005
3.0675 2.261 	0.001
3.0488 2.261 	0.001
3.0303 2.262 	0.001
3.0120 2.262 	0.001
2.9940 2.262 	0.001
2.9762 2.262 	0.001
2.9586 2.262 	0.001
2.9412 2.263 	0.001
2.9240 2.263 	0.001
2.9070 2.263 	0.001
2.8902 2.263 	0.001
2.8736 2.263 	0.001
2.8571 2.264 	0.001
2.8409 2.264 	0.001
2.8249 2.264 	0.001
2.8090 2.265 	0.001
2.7933 2.265 	0.001
2.7778 2.266 	0.001
2.7624 2.266 	0.001
2.7473 2.266 	0.001
2.7322 2.267 	0.001
2.7174 2.267 	0.0005
2.7027 2.267 	0.0005
2.6882 2.267 	0.0005
2.6738 2.268 	0.0005
2.6596 2.268 	0.0005
2.6455 2.268 	0.001
2.6316 2.268 	0.001
2.6178 2.268 	0.001
2.6042 2.268 	0.001
2.5907 2.268 	0.001
2.5773 2.268 	0.001
2.5641 2.268 	0.001
2.5510 2.268 	0.001
2.5381 2.268 	0.002
2.5253 2.268 	0.002
2.5126 2.268 	0.002
2.5000 2.268 	0.003
2.4800 2.268 	0.0005
2.4600 2.268 	0.0005
2.4400 2.269 	0.0005
2.4200 2.270 	0.0005
2.4000 2.271 	0.0001
2.3800 2.271 	0.0001
2.3600 2.272 	0.0001
2.3400 2.273 	0.0001
2.3200 2.274 	0.0001
2.3000 2.275 	0.0001
2.2800 2.276 	0.0001
2.2600 2.276 	0.0001
2.2400 2.277 	0.0001
2.2200 2.277 	0.0001
2.2000 2.278  	0.0001
2.1800 2.278 	0.0001
2.1600 2.279 	0.0001
2.1400 2.280 	0.0001
2.1200 2.280 	0.0001
2.1000 2.281 	0.0001
2.0800 2.283 	0.0001
2.0600 2.284 	0.0001
2.0400 2.284 	0.0001
2.0200 2.285 	0.0001
2.0000 2.285 	0.0001
1.9800 2.286 	0.0001
1.9600 2.286 	0.0001
1.9400 2.287 	0.0001
1.9200 2.287 	0.0001
1.9000 2.287 	0.0001
1.8800 2.287 	0.0001
1.8600 2.287 	0.0001
1.8400 2.287 	0.0001
1.8200 2.286 	0.0001
1.8000 2.286 	0.0001
1.7800 2.286 	0.0001
1.7600 2.286 	0.0001
1.7400 2.286 	0.0001
1.7200 2.286 	0.0001
1.7000 2.286 	0.0001
1.6800 2.286 	0.0001
1.6600 2.286 	0.0005
1.6400 2.287 	0.0005
1.6200 2.288 	0.0005
1.6000 2.288 	0.0005
1.5800 2.289 	0.001
1.5600 2.289 	0.001
1.5400 2.289 	0.001
1.5200 2.290 	0.002
1.5000 2.290 	0.002
1.4800 2.291 	0.002
1.4600 2.291 	0.003
1.4400 2.291 	0.004
1.4200 2.292 	0.004
1.4000 2.292 	0.004
1.3800 2.292 	0.004
1.3600 2.293 	0.004
1.3400 2.293 	0.005
1.3200 2.294 	0.005
1.3000 2.295 	0.005
1.2800 2.296 	0.006
1.2600 2.296 	0.007
1.2400 2.297 	0.007
1.2200 2.297 	0.008
1.2000 2.298 	0.009
1.1800 2.298 	0.010
1.1600 2.299 	0.010
1.1400 2.299 	0.012
1.1200 2.299 	0.013
1.1000 2.299 	0.014
1.0800 2.299 	0.014
1.0600 2.299 	0.015
1.0400 2.299 	0.015
1.0200 2.298 	0.016
1.0000 2.298 	0.016
0.9800 2.298 	0.015
0.9600 2.298 	0.014
0.9400 2.299 	0.013
0.9200 2.300 	0.012
0.9000 2.301 	0.012
0.8800 2.303 	0.011
0.8600 2.304 	0.011
0.8400 2.306 	0.010
0.8200 2.308 	0.009
0.8000 2.310 	0.009
0.7800 2.313 	0.008
0.7600 2.316 	0.007
0.7400 2.319 	0.007
0.7200 2.322 	0.006
0.7000 2.327 	0.006
0.6800 2.331 	0.005
0.6600 2.335 	0.005
0.6400 2.341 	0.002
0.6200 2.348 	0.002
0.6000 2.355 	0.0020
0.5800 2.363 	0.001
0.5600 2.373 	0.001
0.5400 2.384 	0.0005
0.5200 2.397 	0.0005
0.5000 2.416 	0.003
0.4800 2.429 	0.001
0.4600 2.451	0.003
0.4400 2.475 	0.003
0.4200 2.508 	0.004
0.4000 2.550 	0.008
0.3800 2.615 	0.015
0.3600 2.710 	0.054
0.3400 2.790 	0.190
0.3200 2.784 	0.299
0.3000 2.774 	0.357
0.2800 2.816 	0.417
0.2600 2.905 	0.523
0.2400 3.044 	1.740
0.2200 3.017 	1.318