Reedmergnerite Downs R T, Yang H, Hazen R M, Finger L W, Prewitt C T American Mineralogist 84 (1999) 333-340 Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 P = 3.64 GPa _database_code_amcsd 0002219 7.6194 12.2465 6.7389 93.392 116.222 92.263 C-1 atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Na .254129 .008965 .129957 .00674 .00298 .01595 .00087 .00514 -.00133 B .011828 .158118 .220194 .56 Si1m .004593 .810089 .207102 .61 Si2o .699207 .098570 .320676 .61 Si2m .673758 .861752 .352903 .61 O(A1) .005326 .133968 .999846 .83 O(A2) .578476 .978808 .271898 .71 O(B)o .848591 .087720 .217107 .87 O(B)m .811086 .833418 .233406 .92 O(C)o -.007471 .272235 .272288 .70 O(C)m .026856 .678775 .198746 .97 O(D)o .200226 .121600 .383605 1.05 O(D)m .194992 .869007 .414806 1.09