Fluorapatite, LACOM 21795, OK-11c, King Fraction, Pennington, South Dakota, USA, light purple 2.572 mm, E ||c 2499.46, 0.09989 2473.92, 0.10041 2460.40, 0.10092 2446.89, 0.10293 2434.87, 0.10344 2415.35, 0.10396 2404.83, 0.10497 2373.29, 0.10749 2357.53, 0.10950 2344.76, 0.11200 2329.75, 0.11700 2301.23, 0.12500 2285.46, 0.12851 2269.70, 0.13351 2250.18, 0.13751 2225.41, 0.14402 2208.90, 0.14802 2190.88, 0.15203 2173.62, 0.15853 2140.60, 0.17102 2102.32, 0.18102 2080.55, 0.18753 2056.53, 0.19403 2044.53, 0.20301 2025.02, 0.21101 2006.29, 0.22997 2003.30, 0.23944 1998.82, 0.24992 1994.30, 0.24394 1991.28, 0.23846 1967.23, 0.23100 1947.71, 0.23451 1924.44, 0.24151 1869.64, 0.25253 1856.13, 0.25504 1847.87, 0.25754 1830.60, 0.26054 1817.84, 0.26554 1792.33, 0.27205 1775.83, 0.27755 1742.07, 0.28555 1704.57, 0.29406 1630.31, 0.30909 1603.30, 0.31211 1574.79, 0.31762 1545.53, 0.32313 1514.78, 0.33113 1484.78, 0.33814 1460.77, 0.34365 1435.27, 0.35115 1403.77, 0.35915 1382.02, 0.36366 1358.76, 0.36817 1337.76, 0.37218 1316.76, 0.38067 1293.51, 0.38767 1275.51, 0.39018 1256.00, 0.39220 1208.74, 0.40022 1166.73, 0.40724 1137.48, 0.41574 1098.47, 0.42624 1062.48, 0.44024 1033.25, 0.45572 1001.76, 0.46971 962.84, 0.48520 929.91, 0.50018 901.48, 0.51566 868.56, 0.53314 830.38, 0.54564 795.21, 0.55963 782.48, 0.56613 760.03, 0.57412 743.57, 0.58112 727.10, 0.58911 704.66, 0.60060 685.21, 0.61308 671.00, 0.62456 661.28, 0.63155 647.82, 0.64601 629.91, 0.67644 620.96, 0.69240 611.26, 0.70986 600.06, 0.72632 587.36, 0.74378 578.41, 0.76273 570.96, 0.77869 560.50, 0.79565 550.81, 0.81660 542.60, 0.82956 535.14, 0.84153 523.17, 0.85202 508.93, 0.84754 503.67, 0.84107 486.42, 0.82862 472.16, 0.81717 465.40, 0.80721 457.88, 0.79425 445.89, 0.79426 427.94, 0.80575 421.97, 0.81672 418.26, 0.83068 411.54, 0.84365 410.81, 0.85312 409.34, 0.86608 407.13, 0.87905 404.21, 0.91693 401.24, 0.92940 398.29, 0.94934 396.07, 0.96231