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 = 1.89 GPa _database_code_amcsd 0002217 7.7231 12.3038 6.7719 93.364 116.316 92.145 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 .256007 .008238 .130880 .00621 .00294 .01495 .00048 .00478 -.00211 B .011833 .159645 .218587 .6 Si1m .005236 .809963 .208893 .56 Si2o .701038 .100160 .321127 .52 Si2m .679848 .863324 .354838 .49 O(A1) .007518 .135041 .002780 .79 O(A2) .583343 .979410 .269840 .51 O(B)o .845831 .092623 .211736 .77 O(B)m .811704 .834473 .230657 .92 O(C)o -.000956 .274104 .271487 .73 O(C)m .027516 .679251 .200578 .81 O(D)o .195249 .120202 .383200 .97 O(D)m .192656 .868610 .414724 1.14