Cordierite, GRR 425, Haddam, CT 10/13/76 RT 0.611 mm, beta corrected 2405.60, 0.04320 2387.80, 0.03480 2363.30, 0.02420 2335.60, 0.01830 2316.30, 0.02280 2300.60, 0.02360 2286.50, 0.01090 2273.90, 0.01150 2260.40, 0.00930 2250.70, 0.00130 2243.60, 0.00270 2227.00, 0.00650 2199.20, 0.00320 2172.90, 0.00630 2153.50, 0.00800 2138.30, 0.00360 2125.90, 0.00740 2107.50, 0.01400 2097.30, 0.01110 2082.80, 0.00320 2055.60, 0.00000 2041.40, 0.00170 2024.30, 0.00450 2004.40, 0.01020 1997.10, 0.01210 1990.30, 0.01440 1984.10, 0.01770 1973.40, 0.02620 1959.90, 0.03840 1952.00, 0.04640 1945.80, 0.05460 1939.90, 0.07070 1935.70, 0.09220 1932.20, 0.11350 1930.30, 0.12730 1927.50, 0.14620 1926.20, 0.14930 1924.00, 0.15270 1921.80, 0.15850 1920.20, 0.17720 1919.10, 0.20580 1918.00, 0.23380 1917.30, 0.26910 1915.50, 0.32820 1914.70, 0.37280 1914.20, 0.43410 1912.90, 0.48300 1911.90, 0.56390 1910.40, 0.70830 1908.80, 0.85130 1908.50, 0.99870 1907.70, 1.07340 1907.10, 1.16280 1905.80, 1.19980 1905.30, 1.22370 1904.70, 1.23890 1903.80, 1.22530 1902.90, 1.15970 1901.60, 1.09210 1900.70, 1.04280 1900.60, 0.99560 1900.10, 0.96130 1898.60, 0.91520 1898.10, 0.84490 1897.50, 0.77200 1896.90, 0.69840 1895.10, 0.57430 1893.00, 0.43340 1890.80, 0.32940 1888.20, 0.24060 1885.00, 0.17090 1881.80, 0.13530 1879.60, 0.10980 1874.20, 0.08260 1868.80, 0.06960 1862.60, 0.05990 1854.40, 0.05220 1846.20, 0.04840 1836.40, 0.04270 1830.80, 0.03430 1825.50, 0.02760 1817.90, 0.02210 1808.60, 0.01780 1800.40, 0.01260 1792.70, 0.00860 1783.30, 0.00670 1595.60, 0.00980 1550.20, 0.01780 1512.50, 0.02300 1490.80, 0.03070 1477.80, 0.03920 1473.40, 0.05010 1471.60, 0.06700 1468.00, 0.07810 1465.60, 0.08850 1462.50, 0.08050 1460.80, 0.07220 1457.80, 0.06140 1452.30, 0.06040 1444.50, 0.06780 1439.50, 0.08000 1434.30, 0.10340 1430.40, 0.12980 1427.00, 0.15890 1425.40, 0.18410 1421.30, 0.21160 1421.20, 0.22670 1415.40, 0.23590 1412.20, 0.22820 1410.80, 0.21560 1409.40, 0.19930 1406.30, 0.17880 1404.80, 0.15640 1404.40, 0.13820 1400.50, 0.11870 1396.80, 0.10620 1394.60, 0.10100 1385.60, 0.09650 1377.90, 0.09790 1364.90, 0.10100 1351.70, 0.10600 1340.40, 0.11190 1332.30, 0.12090 1321.20, 0.12950 1310.30, 0.13630 1297.60, 0.14530 1214.50, 0.20700 1195.00, 0.22110 1181.80, 0.23100 1170.80, 0.24130 1163.90, 0.25100 1158.40, 0.26340 1155.70, 0.27040 1154.00, 0.26640 1150.80, 0.26220 1145.70, 0.26290 1141.20, 0.26810 1131.20, 0.27930 1122.00, 0.29290 1111.50, 0.31220 1101.50, 0.33130 1091.40, 0.35360 1081.50, 0.38150 1074.00, 0.40490 1062.90, 0.43650 1054.30, 0.47150 1040.60, 0.51000 1032.70, 0.54080 1021.90, 0.56790 1008.60, 0.60610 1001.60, 0.62650 988.90, 0.64870 980.70, 0.66210 966.70, 0.67270 955.20, 0.67090 946.40, 0.66470 940.90, 0.65630 933.50, 0.64470 929.90, 0.63380 921.40, 0.61580 915.80, 0.60230 906.90, 0.57940 900.40, 0.55280 893.60, 0.52820 887.00, 0.50550 881.20, 0.47470 874.80, 0.45450 870.80, 0.42830 862.50, 0.40250 855.90, 0.36900 847.30, 0.34140 839.60, 0.31450 830.70, 0.28790 821.90, 0.25540 811.90, 0.23050 806.50, 0.21630 797.60, 0.19520 786.00, 0.17720 769.50, 0.16130 753.30, 0.15330 737.70, 0.15210 725.70, 0.15620 712.50, 0.16400 704.40, 0.17110 687.80, 0.18340 677.30, 0.19220 664.90, 0.19940 653.30, 0.20630 640.60, 0.21360 625.40, 0.21680 606.80, 0.21740 587.60, 0.21940 568.60, 0.21760 550.80, 0.21090 531.00, 0.19900 517.50, 0.18860 507.80, 0.18010 497.10, 0.17110 489.20, 0.16210 475.20, 0.14730 462.50, 0.13720 451.80, 0.12870 444.00, 0.12620 439.30, 0.12050 431.50, 0.12060 424.70, 0.11920 420.90, 0.11270 413.60, 0.10280 406.70, 0.09660 401.30, 0.09220 394.80, 0.09220 389.10, 0.09010 384.30, 0.08690 375.20, 0.08970 367.30, 0.09730 361.20, 0.10680 356.10, 0.11710