Cordierite, GRR 338, Mt. Tsilaizina, Madagascar #1/6/76 R.T. 
1.128 mm, gamma,  corrected
 2605.00,   0.82470
 2601.40,   0.81120
 2599.50,   0.80420
 2594.80,   0.80090
 2591.60,   0.80780
 2589.10,   0.81410
 2584.50,   0.82950
 2579.60,   0.84740
 2576.30,   0.86590
 2573.20,   0.88600
 2572.40,   0.90220
 2569.80,   0.91470
 2566.30,   0.92270
 2564.00,   0.92180
 2560.50,   0.91260
 2557.40,   0.90200
 2554.20,   0.89090
 2551.10,   0.86980
 2547.50,   0.84640
 2545.70,   0.80460
 2542.20,   0.74450
 2538.70,   0.67780
 2535.10,   0.60320
 2530.70,   0.52280
 2526.30,   0.44830
 2520.70,   0.37490
 2514.30,   0.30980
 2503.10,   0.23650
 2495.20,   0.19480
 2492.00,   0.17580
 2488.30,   0.16280
 2483.80,   0.15700
 2478.80,   0.15100
 2476.30,   0.14490
 2472.40,   0.13120
 2468.00,   0.11750
 2461.50,   0.11080
 2451.80,   0.09550
 2443.10,   0.08220
 2435.30,   0.07310
 2423.90,   0.05790
 2407.40,   0.04330
 2395.00,   0.03760
 2384.60,   0.03420
 2372.00,   0.02720
 2356.10,   0.02640
 2343.20,   0.02370
 2333.90,   0.02010
 2324.80,   0.01280
 2316.10,   0.00760
 2310.40,   0.00560
 2301.90,   0.00680
 2294.70,   0.00830
 2288.50,   0.00900
 2281.40,   0.00900
 2274.30,   0.00830
 2265.60,   0.00640
 2258.30,   0.00660
 2254.00,   0.01160
 2248.30,   0.01730
 2241.70,   0.01570
 2236.00,   0.01210
 2229.70,   0.01240
 2223.50,   0.01420
 2217.40,   0.01600
 2213.50,   0.02560
 2211.20,   0.03020
 2207.40,   0.02490
 2203.00,   0.01960
 2197.60,   0.01640
 2192.80,   0.01370
 2180.80,   0.01150
 2172.10,   0.01130
 2160.20,   0.00850
 2153.20,   0.00480
 2146.50,   0.00000
 2141.40,   0.00070
 2136.60,   0.00590
 2130.70,   0.00540
 2123.20,   0.00460
 2116.00,   0.00710
 2106.40,   0.00620
 2098.20,   0.00790
 2090.70,   0.00890
 2083.50,   0.01000
 2079.30,   0.01390
 2076.50,   0.01320
 2073.50,   0.01040
 2067.50,   0.00960
 2059.80,   0.01010
 2054.00,   0.00980
 2049.30,   0.00970
 2045.70,   0.01270
 2041.60,   0.01180
 2039.00,   0.01220
 2031.30,   0.01370
 2026.00,   0.01840
 2024.00,   0.02220
 2022.50,   0.02330
 2021.60,   0.02510
 2020.70,   0.03000
 2019.90,   0.03710
 2019.40,   0.04800
 2018.60,   0.05800
 2018.00,   0.06870
 2017.20,   0.08010
 2016.30,   0.08630
 2015.40,   0.08370
 2015.20,   0.07870
 2014.60,   0.07200
 2014.50,   0.06270
 2013.90,   0.05120
 2012.20,   0.03960
 2010.90,   0.03250
 2009.20,   0.03010
 2007.70,   0.02950
 2005.90,   0.02810
 2004.20,   0.02750
 2002.10,   0.02840
 2000.40,   0.03160
 1997.80,   0.03470
 1994.60,   0.03910
 1991.20,   0.04410
 1987.50,   0.04730
 1984.00,   0.04890
 1980.70,   0.04920
 1976.80,   0.05270
 1975.10,   0.05470
 1974.10,   0.05900
 1973.00,   0.06590
 1972.70,   0.07320
 1971.50,   0.08390
 1971.10,   0.09010
 1970.30,   0.09330
 1969.50,   0.09170
 1969.30,   0.08740
 1968.60,   0.08020
 1968.40,   0.07190
 1967.60,   0.06490
 1967.00,   0.05950
 1965.60,   0.05510
 1964.60,   0.05320
 1963.10,   0.05270
 1961.70,   0.05210
 1961.00,   0.04950
 1960.20,   0.04730
 1958.00,   0.04790
 1954.20,   0.04880
 1949.80,   0.04930
 1944.00,   0.05010
 1938.00,   0.05210
 1933.40,   0.05640
 1929.90,   0.05820
 1925.40,   0.06050
 1922.60,   0.06400
 1921.30,   0.06700
 1919.50,   0.06570
 1918.70,   0.06430
 1916.90,   0.06600
 1914.60,   0.06890
 1912.80,   0.07130
 1908.90,   0.07610
 1906.20,   0.07780
 1904.80,   0.07380
 1902.30,   0.07360
 1900.60,   0.07350
 1900.10,   0.07100
 1898.70,   0.06440
 1896.50,   0.05930
 1893.30,   0.05580
 1891.50,   0.05370
 1888.00,   0.05160
 1881.00,   0.05100
 1874.20,   0.05100
 1868.20,   0.05060
 1862.10,   0.05130
 1858.90,   0.05350
 1852.70,   0.05870
 1850.60,   0.05880
 1849.60,   0.06080
 1848.30,   0.06080
 1845.90,   0.06050
 1844.10,   0.06170
 1840.50,   0.06420
 1836.10,   0.07000
 1831.90,   0.07480
 1829.00,   0.07980
 1826.80,   0.08420
 1824.80,   0.08470
 1822.90,   0.08450
 1819.70,   0.08430
 1818.80,   0.08260
 1817.30,   0.07870
 1814.30,   0.07320
 1811.30,   0.06370
 1806.70,   0.05250
 1802.60,   0.04410
 1797.90,   0.03790
 1791.60,   0.03220
 1780.70,   0.02770
 1765.90,   0.02430
 1747.60,   0.02320
 1733.00,   0.02350
 1633.40,   0.03260
 1600.70,   0.03480
 1562.90,   0.04000
 1530.40,   0.04580
 1505.00,   0.05170
 1486.30,   0.05800
 1470.50,   0.06080
 1458.20,   0.06680
 1453.70,   0.06980
 1449.70,   0.07350
 1444.80,   0.07540
 1439.30,   0.07810
 1435.80,   0.07950
 1434.00,   0.08230
 1433.10,   0.08400
 1431.20,   0.08400
 1428.80,   0.08480
 1426.30,   0.08750
 1425.00,   0.09160
 1421.70,   0.10050
 1420.70,   0.10820
 1419.50,   0.11270
 1418.90,   0.11230
 1418.00,   0.11260
 1417.70,   0.11460
 1416.90,   0.11660
 1416.40,   0.11590
 1415.30,   0.11570
 1414.50,   0.11820
 1413.00,   0.11990
 1411.80,   0.11870
 1410.80,   0.11740
 1409.80,   0.11670
 1408.70,   0.11690
 1408.10,   0.11940
 1406.60,   0.12000
 1405.30,   0.11900
 1405.10,   0.11550
 1404.40,   0.11180
 1403.90,   0.10650
 1401.20,   0.10030
 1399.00,   0.09640
 1396.20,   0.09530
 1390.90,   0.09470
 1384.40,   0.09420
 1376.60,   0.09610
 1370.70,   0.10020
 1367.00,   0.10530
 1364.10,   0.10910
 1361.20,   0.10970
 1358.40,   0.10910
 1356.00,   0.10650
 1353.90,   0.10320
 1351.00,   0.09870
 1347.20,   0.09480
 1342.10,   0.09460
 1335.20,   0.09490
 1320.00,   0.10100
 1304.30,   0.10890
 1236.00,   0.16200
 1218.80,   0.18360
 1198.00,   0.21240
 1178.80,   0.24680
 1161.90,   0.28490
 1149.50,   0.32590
 1138.40,   0.36410
 1129.10,   0.40130
 1116.00,   0.45990
 1105.50,   0.51700
 1097.70,   0.56490
 1089.80,   0.61490
 1082.70,   0.66390
 1076.30,   0.71380
 1070.70,   0.76240
 1066.20,   0.80150
 1059.70,   0.85820
 1055.10,   0.89870
 1051.60,   0.93400
 1047.90,   0.97100
 1044.80,   1.00110
 1040.80,   1.02980
 1038.10,   1.05230
 1035.10,   1.09040
 1032.30,   1.12050
 1026.80,   1.17560
 1022.20,   1.22360
 1016.20,   1.27770
 1010.20,   1.34250
 1004.80,   1.39540
 1000.50,   1.44170
  994.90,   1.49240
  990.20,   1.54710
  983.10,   1.59820
  976.00,   1.65130
  968.80,   1.69860
  965.70,   1.71950
  961.60,   1.74390
  957.60,   1.76170
  953.50,   1.77830
  948.60,   1.79260
  945.20,   1.80030
  939.10,   1.80890
  935.10,   1.80960
  930.00,   1.80580
  925.00,   1.79320
  920.50,   1.77830
  915.40,   1.75510
  910.00,   1.73160
  904.80,   1.69850
  899.30,   1.65840
  895.20,   1.62790
  890.10,   1.58680
  886.20,   1.54630
  881.80,   1.50380
  876.70,   1.45460
  872.00,   1.40150
  866.30,   1.33530
  860.60,   1.27630
  855.00,   1.21810
  849.90,   1.15990
  845.20,   1.11080
  841.90,   1.06350
  838.40,   1.02400
  835.20,   0.98780
  830.60,   0.93490
  827.00,   0.88690
  820.60,   0.82750
  815.90,   0.77310
  809.40,   0.71200
  805.00,   0.66950
  800.50,   0.62510
  796.60,   0.59610
  791.10,   0.55240
  786.30,   0.51790
  778.20,   0.46460
  772.70,   0.42950
  767.10,   0.39850
  760.60,   0.37260
  754.90,   0.35120
  750.40,   0.33460
  744.70,   0.31790
  737.70,   0.30030
  730.80,   0.28730
  725.10,   0.27820
  719.00,   0.27040
  713.80,   0.26500
  708.90,   0.26180
  704.30,   0.25970
  700.30,   0.25960
  694.90,   0.25990
  689.50,   0.26080
  682.70,   0.26430
  672.20,   0.26950
  662.40,   0.27500
  650.80,   0.28130
  639.90,   0.28920
  633.00,   0.29480
  623.30,   0.30000
  610.60,   0.30840
  600.70,   0.31350
  591.20,   0.31840
  582.50,   0.32330
  575.10,   0.32630
  567.80,   0.32840
  559.70,   0.33020
  550.90,   0.33210
  542.10,   0.33260
  534.00,   0.33180
  526.00,   0.33140
  519.50,   0.33080
  513.70,   0.33030
  508.80,   0.33080
  503.60,   0.33180
  500.50,   0.33330
  495.20,   0.33600
  491.80,   0.33710
  487.40,   0.33750
  483.50,   0.33660
  479.30,   0.33640
  475.10,   0.33620
  473.10,   0.33590
  469.40,   0.33460
  465.60,   0.33390
  462.30,   0.33460
  458.40,   0.33480
  453.90,   0.33410
  450.40,   0.33460
  447.20,   0.33610
  443.70,   0.33950
  441.00,   0.34360
  438.20,   0.34760
  435.10,   0.35000
  432.20,   0.35140
  430.30,   0.35330
  427.80,   0.35760
  425.40,   0.36200
  422.60,   0.36580
  420.20,   0.37040
  418.80,   0.37270
  416.90,   0.37290
  414.30,   0.37380
  411.00,   0.37660
  408.40,   0.37900
  405.10,   0.38220
  403.90,   0.38530
  402.70,   0.38960
  401.70,   0.39260
  399.70,   0.39570
  397.30,   0.39890
  395.70,   0.40220
  394.50,   0.40650
  393.40,   0.41140
  391.70,   0.41940
  389.90,   0.42590
  388.00,   0.43110
  385.30,   0.43600
  383.40,   0.44300
  382.10,   0.45090
  380.20,   0.45900
  379.00,   0.46660
  378.10,   0.47300
  375.80,   0.48190
  373.10,   0.49660
  367.70,   0.52160
  363.90,   0.54630
  360.10,   0.57100
  355.70,   0.60010