Jadeite Cameron M, Sueno S, Prewitt C T, Papike J J American Mineralogist 58 (1973) 594-618 High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite, spodumene, and ureyite T = 400 C pyroxene _database_code_amcsd 0000352 9.45 8.594 5.233 90 107.57 90 C2/c atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .2904 .0931 .2270 .00211 .00224 .00501 -.00029 .00073 -.00023 Al1 0 .9050 1/4 .00240 .00246 .00529 0 .00055 0 Na2 0 .3006 1/4 .00761 .00452 .01475 0 -.00103 0 O1 .1096 .0756 .1279 .00213 .00317 .00681 -.00021 .00058 .00031 O2 .3612 .2622 .2918 .00394 .00264 .01064 -.00114 .00099 -.00057 O3 .3530 .0069 .0057 .00305 .00442 .00686 -.00008 .00119 -.00212