Triphylite, GRR 176 D, Center Strafford, New Hampshire, R.T. 0.261 mm, E ||b = Gamma = 10.3 A axis 346., .3143 347.9, .304 350., .299 352.9, .294 356.1, .29 359.2, .291 361.8, .292 363.5, .287 366.1, .281 367.9, .276 370.3, .268 373.9, .258 376.4, .252 379., .247 381.7, .245 385.5, .245 388.6, .249 390.6, .253 391.4, .255 392.4, .255 393.7, .253 395.4, .251 396.3, .251 397.2, .252 399.4, .254 401.1, .255 402.8, .26 403.3, .261 404.8, .262 405.7, .267 406.3, .282 406.9, .304 407.2, .32 407.7, .301 408., .29 408.3, .279 408.9, .277 409.7, .278 409.9, .274 410.7, .269 411.6, .257 412.4, .249 413., .243 414.5, .234 417.6, .228 421.4, .225 424.8, .223 428.6, .222 431.8, .222 434.9, .223 437.2, .226 440.1, .226 442.2, .226 445.5, .228 447.5, .231 449.1, .237 450.3, .242 451.2, .245 452.6, .246 454.6, .247 455.8, .248 457.2, .25 459., .251 460., .248 462.4, .243 464.9, .239 467.2, .234 468.5, .23 472.6, .22 473.7, .215 475.6, .209 478.5, .202 480.2, .201 482.3, .2 485., .201 485.6, .202 488.3, .203 490.7, .205 492.7, .205 494.5, .204 496., .208 496.6, .208 497.9, .207 499.8, .204 503.3, .202 507.1, .2 512.2, .197 515.3, .195 521.2, .188 524.7, .185 529.7, .18 535., .178 539.2, .175 542.3, .174 547.9, .173 554.8, .172 559.7, .171 566.9, .169 571.6, .168 575.5, .17 579.8, .173 583.5, .177 588.9, .181 591.7, .186 594.8, .19 598., .194 600.9, .196 602.2, .197 605.7, .196 609.6, .191 612.6, .186 616.3, .177 620., .168 624.4, .159 629.7, .15 632.7, .146 637.7, .142 642.1, .141 648.8, .138 656.5, .138 663.1, .139 669.9, .141 677.8, .145 688.9, .148 693.5, .148 705.4, .151 714.1, .151 722.3, .151 731.5, .148 738.7, .144 745.8, .14 755.1, .136 763.7, .132 770.6, .129 776.6, .127 783.6, .125 789.3, .125 795., .125 798.7, .124 808.3, .125 824.7, .128 838.2, .132 850., .138 864.6, .147 875.3, .154 887.7, .167 898.7, .18 910.4, .198 922.6, .22 940.3, .25 952.9, .279 963.7, .305 977.1, .336 991.3, .366 1007.1, .396 1015.7, .412 1027.4, .429 1036.9, .441 1047.2, .45 1058., .454 1067.5, .454 1077.2, .452 1086.2, .446 1095.1, .439 1103.6, .43 1113.5, .418 1124.3, .406 1134.3, .396 1141.5, .388 1149.4, .38 1159., .372 1167.4, .366 1175.8, .361 1186.3, .359 1197.3, .359 1206.4, .362 1217., .366 1225.7, .372 1236.8, .382 1243.7, .389 1258.2, .401 1267.3, .415 1277.4, .428 1290.7, .442 1301.3, .456 1310.3, .467 1319.8, .477 1336.6, .496 1349.3, .508 1360.5, .518 1375.7, .529 1387.3, .535 1397.5, .539 1409.9, .541 1427.3, .54 1442.6, .535 1454.6, .528 1467.8, .52 1484.4, .505 1493.3, .496 1503.3, .483 1518.4, .465 1533.6, .448 1548.3, .429 1561., .41 1574.1, .391 1587.9, .372 1597.3, .358 1613., .334 1624.3, .318 1641.5, .294 1655.1, .276 1667.7, .26 1681.9, .243 1694., .228 1703.6, .217 1719., .202 1732.8, .187 1747.3, .174 1760.8, .162 1775.3, .15 1791.2, .14 1811.9, .13 1833.5, .119 1848.4, .111 1866.1, .104 1899.1, .095 1920.3, .09 1940.9, .085 1965.2, .08 1992.7, .076 2022.6, .076 2047., .075 2072.4, .075 2099.4, .075