Osumilite, GRR 301, Nain, Labrador 0.117 mm, E||alpha = red, corrected, RT, 6/1/76 2630.10, 0.00000 2584.60, 0.00220 2423.30, 0.00270 2025.40, 0.01280 1903.50, 0.00830 1807.20, 0.00520 1739.80, 0.00660 1561.20, 0.00920 1482.60, 0.01390 1412.00, 0.01790 1358.20, 0.02570 1335.00, 0.02820 1224.70, 0.07640 1210.20, 0.09520 1199.30, 0.11550 1187.50, 0.13420 1177.70, 0.15700 1169.70, 0.17950 1160.20, 0.20230 1152.00, 0.23200 1144.70, 0.25850 1137.30, 0.28750 1132.90, 0.30890 1126.90, 0.33810 1121.00, 0.36440 1114.10, 0.39930 1109.60, 0.42420 1105.10, 0.44720 1100.30, 0.47070 1096.60, 0.49570 1092.70, 0.52470 1087.80, 0.56110 1082.60, 0.58590 1078.70, 0.60730 1075.80, 0.62620 1072.50, 0.64970 1068.60, 0.68070 1064.00, 0.70920 1059.40, 0.73900 1054.60, 0.77470 1051.10, 0.80390 1048.20, 0.82450 1044.50, 0.84880 1041.00, 0.88660 1039.60, 0.90400 1035.70, 0.92620 1030.60, 0.95390 1026.90, 0.97540 1022.30, 1.00050 1018.60, 1.02340 1013.40, 1.05540 1009.20, 1.08120 1002.80, 1.11080 993.50, 1.15440 989.10, 1.17160 981.40, 1.19190 976.60, 1.20010 969.10, 1.20590 963.00, 1.20580 959.40, 1.20300 954.10, 1.19840 950.20, 1.19170 945.90, 1.17710 941.50, 1.16450 936.60, 1.14510 932.00, 1.12520 927.30, 1.10760 924.20, 1.08740 920.00, 1.06590 915.70, 1.04240 912.30, 1.01450 907.20, 0.98660 903.30, 0.95570 899.90, 0.93110 896.80, 0.90670 893.40, 0.88500 887.60, 0.85270 884.30, 0.81510 879.20, 0.77920 873.80, 0.73710 868.80, 0.69110 861.90, 0.63560 856.10, 0.58710 850.20, 0.54500 844.60, 0.50790 839.40, 0.46930 833.30, 0.43190 828.00, 0.39910 822.50, 0.36710 817.20, 0.33810 811.20, 0.30870 804.80, 0.28490 799.30, 0.26170 792.90, 0.24470 786.10, 0.22240 777.80, 0.20160 767.40, 0.18400 757.10, 0.17390 746.50, 0.16850 735.20, 0.16800 726.50, 0.17000 717.00, 0.17460 700.70, 0.18530 692.50, 0.19240 684.50, 0.19910 674.10, 0.20840 664.40, 0.21770 646.50, 0.23800 635.20, 0.24840 626.90, 0.25730 616.10, 0.26900 608.20, 0.27840 597.40, 0.28870 588.80, 0.29830 578.80, 0.30670 566.50, 0.31910 559.30, 0.32530 546.30, 0.33330 533.50, 0.33830 524.70, 0.33890 511.60, 0.33920 498.80, 0.33700 490.90, 0.33400 482.30, 0.32680 476.00, 0.31970 467.90, 0.30900 460.60, 0.29840 455.40, 0.29170 451.90, 0.28860 449.80, 0.28700 446.10, 0.27890 442.10, 0.26910 437.70, 0.25830 433.10, 0.24820 427.80, 0.23720 422.10, 0.22590 417.30, 0.21790 412.10, 0.20630 408.10, 0.19990 402.50, 0.18980 398.00, 0.18340 393.80, 0.17790 390.10, 0.17360 385.70, 0.16960 382.70, 0.17030 379.30, 0.17230 375.40, 0.17630 369.80, 0.18060 366.70, 0.18810 361.60, 0.19670 357.20, 0.21140 352.30, 0.23360 348.20, 0.24750 340.50, 0.29270