"Cahill et al., Icarus 2019"		
Optical Constants of Iron and Nickel Metal and An Assessment of Their Relative Influences on Silicate Mixture Spectra From the FUV to the NIR'		
prism Fe data		
		
nm	n	k
160	1.3647	0.84468
170	1.2912	0.92382
180	1.2582	1.0533
190	1.2849	1.1852
200	1.3244	1.2781
210	1.3061	1.3369
220	1.2839	1.3998
230	1.2713	1.4946
240	1.2883	1.6114
250	1.287	1.7005
260	1.305	1.8111
270	1.3283	1.9088
280	1.3389	1.986
290	1.3697	2.0741
300	1.3959	2.1789
310	1.4281	2.2625
320	1.464	2.3521
330	1.5008	2.4422
340	1.5496	2.5418
350	1.5916	2.6293
360	1.6474	2.7199
370	1.7054	2.8056
380	1.7652	2.8922
390	1.8365	2.9651
400	1.9131	3.0343
410	1.9767	3.0973
420	2.0477	3.1582
430	2.1266	3.2106
440	2.1954	3.2542
450	2.2719	3.2884
460	2.3407	3.3184
470	2.4126	3.3484
480	2.4924	3.3572
490	2.5631	3.3762
500	2.6202	3.3868
510	2.6765	3.4072
520	2.7249	3.4156
530	2.7716	3.42
540	2.8267	3.4294
550	2.8577	3.4362
560	2.8981	3.4515
570	2.9338	3.4585
580	2.9638	3.4729
590	2.9929	3.4787
600	3.0288	3.4688
610	3.0543	3.4889
620	3.077	3.493
630	3.0947	3.5041
640	3.1242	3.5034
650	3.1336	3.5232
660	3.1552	3.5462
670	3.1769	3.5412
680	3.1929	3.5614
690	3.209	3.5705
700	3.2195	3.5859
710	3.2366	3.6032
720	3.2512	3.6099
730	3.2542	3.6285
740	3.2632	3.6532
750	3.2842	3.6679
760	3.287	3.6864
770	3.3044	3.7097
780	3.311	3.7318
790	3.3196	3.7461
800	3.3298	3.7673
810	3.3454	3.7813
820	3.3454	3.8157
830	3.3648	3.8261
840	3.3691	3.8637
850	3.3715	3.8761
860	3.3848	3.8815
870	3.3972	3.9196
880	3.4046	3.939
890	3.4092	3.9711
900	3.428	3.9844
910	3.4336	4.0223
920	3.4455	4.0272
930	3.451	4.0605
940	3.4529	4.0937
950	3.4731	4.1184
960	3.4786	4.1463
970	3.4884	4.1616
980	3.4988	4.1938
990	3.5108	4.2121
1000	3.5148	4.2417
1010	3.5261	4.2697
1020	3.5331	4.2782
1030	3.5356	4.3129
1040	3.5534	4.3394
1050	3.574	4.375
1060	3.5798	4.4048
1070	3.5871	4.4099
1080	3.5998	4.4541
1090	3.6002	4.4767
1100	3.6172	4.493
1110	3.618	4.5177
1120	3.6181	4.5381
1130	3.6317	4.567
1140	3.6394	4.5931
1150	3.6502	4.6156
1160	3.6601	4.648
1170	3.6855	4.6734
1180	3.6803	4.7002
1190	3.6969	4.7224
1200	3.6946	4.7517
1210	3.7065	4.7748
1220	3.7244	4.8118
1230	3.7185	4.8293
1240	3.7326	4.8637
1250	3.7462	4.8735
1260	3.7437	4.9114
1270	3.7474	4.9284
1280	3.7773	4.9719
1290	3.7787	4.9746
1300	3.7859	5.0082
1310	3.7981	5.0376
1320	3.7947	5.0621
1330	3.8043	5.0771
1340	3.8191	5.1107
1350	3.822	5.136
1360	3.8262	5.1547
1370	3.8343	5.1888
1380	3.8308	5.2056
1390	3.8431	5.2392
1400	3.854	5.2628
1410	3.8692	5.2921
1420	3.8716	5.3153
1430	3.8817	5.3327
1440	3.8847	5.3779
1450	3.8828	5.4004
1460	3.9007	5.411
1470	3.9008	5.4571
1480	3.913	5.4805
1490	3.9126	5.4869
1500	3.9212	5.5188
1510	3.938	5.544
1520	3.9452	5.581
1530	3.9474	5.6148
1540	3.9517	5.6315
1550	3.9637	5.6463
1560	3.9634	5.6752
1570	3.9853	5.707
1580	3.9692	5.7199
1590	3.9821	5.7478
1600	3.9785	5.7775
1610	3.996	5.8062
1620	3.9919	5.8259
1630	4.024	5.8609
1640	4.0119	5.8906
1650	4.0306	5.9188
1660	4.0235	5.9303
1670	4.0415	5.9676
1680	4.0476	5.993
1690	4.0351	6.0071
1700	4.0997	6.0579
1710	4.1038	6.0848
1720	4.0726	6.1192
1730	4.1047	6.1259
1740	4.0993	6.1743
1750	4.1142	6.2103
1760	4.1073	6.2327
1770	4.1201	6.251
1780	4.0996	6.2844
1790	4.1263	6.2694
1800	4.1098	6.3237
1810	4.1522	6.3649
1820	4.1188	6.3742
1830	4.1443	6.427
1840	4.1361	6.4293
1850	4.1542	6.4637
1860	4.1523	6.4855
1870	4.1859	6.5313
1880	4.2096	6.5545
1890	4.1837	6.5631
1900	4.2157	6.5915
1910	4.2296	6.6366
1920	4.2071	6.6553
1930	4.2104	6.6795
1940	4.2446	6.728
1950	4.2408	6.7445
1960	4.2605	6.758
1970	4.2598	6.7878
1980	4.2705	6.8315
1990	4.2506	6.863
2000	4.2685	6.8715
2010	4.2869	6.889
2020	4.2863	6.926
2030	4.3045	6.9544
2040	4.3084	7.0078
2050	4.2915	7.0237
2060	4.3166	7.034
2070	4.3114	7.0639
2080	4.3313	7.122
2090	4.3477	7.1164
2100	4.3346	7.1444
2110	4.343	7.1993
2120	4.3686	7.2032
2130	4.3526	7.217
2140	4.3737	7.2651
2150	4.3878	7.2996
2160	4.3977	7.297
2170	4.4021	7.3519
2180	4.3971	7.3687
2190	4.3997	7.4135
2200	4.4106	7.4448
2210	4.4472	7.4669
2220	4.4241	7.4606
2230	4.4393	7.5185
2240	4.4509	7.5377
2250	4.438	7.562
2260	4.4591	7.595
2270	4.4565	7.6273
2280	4.4672	7.6478
2290	4.48	7.6771
2300	4.484	7.6901
2310	4.4849	7.7253
2320	4.4915	7.7615
2330	4.5019	7.774
2340	4.5161	7.8198
2350	4.5312	7.8307
2360	4.5318	7.8783
2370	4.5239	7.8912
2380	4.5337	7.9073
2390	4.5377	7.9495
2400	4.5509	7.9515
2410	4.564	8.0072
2420	4.5619	8.0258
2430	4.5727	8.0528
2440	4.5706	8.0794
2450	4.6015	8.1038
2460	4.585	8.1259
2470	4.5958	8.1581
2480	4.595	8.1937
2490	4.6141	8.2116
2500	4.6113	8.2425
2510	4.6295	8.2712
2520	4.6352	8.298
2530	4.6375	8.3358
2540	4.6477	8.3658
2550	4.6612	8.3586
2560	4.6464	8.4044
2570	4.6894	8.4578
2580	4.6775	8.4704
2590	4.6648	8.4987
2600	4.6785	8.5333
2610	4.6975	8.5495
2620	4.6937	8.5903
2630	4.7085	8.6222
2640	4.7302	8.6789
2650	4.7095	8.6892
2660	4.7102	8.7066
2670	4.7133	8.7341
2870	4.7935	9.2606
2880	4.8556	9.2367
2890	4.8605	9.2802
2900	4.8583	9.3373
2910	4.8316	9.3273
2920	4.8696	9.3579
2930	4.9091	9.4112
2940	4.8613	9.4159
2950	4.8792	9.4582
2960	4.9045	9.4592
2970	4.9023	9.5091
2980	4.8976	9.5202
2990	4.9247	9.5571
3000	4.9031	9.5824
3010	4.9019	9.638
3020	4.9136	9.6474
3030	4.9523	9.6616
3040	4.9478	9.6646
3050	4.9724	9.6964
3060	4.9421	9.7252
3070	4.9718	9.7743
3080	4.9536	9.7901
3090	4.9492	9.8477
3100	4.9697	9.8721
3110	4.9826	9.8645
3120	4.9724	9.9107
3130	4.9724	9.9216
3140	5.0031	9.9471
3150	4.9965	9.981
3160	4.9965	10.026
3170	4.9995	10.05
3180	5.0091	10.077
3190	4.9994	10.118
3200	5.0143	10.142
3210	5.0199	10.144
3220	5.0165	10.196
3230	5.0173	10.212
3240	5.0383	10.242
3250	5.0616	10.286
3260	5.0612	10.29
3270	5.0404	10.33
3280	5.0603	10.338
3290	5.0645	10.363
3300	5.0634	10.396
3310	5.0808	10.434
3320	5.0512	10.462
3330	5.0911	10.476
3340	5.0976	10.516
3350	5.0828	10.548
3360	5.0942	10.568
3370	5.0988	10.618
3380	5.0889	10.637
3390	5.1148	10.668
3400	5.1098	10.681
3410	5.1253	10.701
3420	5.1224	10.721
3430	5.1101	10.801
3440	5.1489	10.787
3450	5.1314	10.819
3460	5.1633	10.861
3470	5.1534	10.892
3480	5.1676	10.938
3490	5.1787	10.958
3500	5.1692	10.967
3510	5.1609	11.002
3520	5.1848	11.062
3530	5.1579	11.006
3540	5.1445	11.113
3550	5.1302	11.171
3560	5.2519	11.041
3570	5.2331	11.181
3580	5.16	11.237
3590	5.2308	11.195