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 = 3.00 GPa _database_code_amcsd 0002218 7.6589 12.2675 6.7512 93.374 116.256 92.222 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 .254374 .008769 .128849 .00658 .00283 .01729 .00096 .00589 -.00121 B .012769 .158859 .222044 .58 Si1m .005232 .810082 .208523 .56 Si2o .699215 .099025 .319224 .53 Si2m .676047 .862364 .353928 .54 O(A1) .008001 .134997 .004191 .87 O(A2) .581581 .979951 .274584 .51 O(B)o .848203 .089755 .216070 .78 O(B)m .810335 .833451 .229191 .95 O(C)o -.005648 .272837 .270184 .65 O(C)m .026831 .679024 .200100 .91 O(D)o .198086 .121144 .383188 1.02 O(D)m .195121 .868926 .417785 1.12