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 = 0.00 GPa, in cell _database_code_amcsd 0002215 7.8389 12.3715 6.8065 93.311 116.363 92.043 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 .25866 .00757 .13442 .005139 .003374 .006909 .000735 .001631 -.000999 B .01340 .16114 .22209 .53 Si1m .00624 .80987 .20976 .53 Si2o .70291 .10201 .32052 .50 Si2m .68571 .86460 .35660 .49 O(A1) .00705 .13697 .00166 .84 O(A2) .59274 .98109 .27505 .60 O(B)o .84479 .09912 .21180 .85 O(B)m .81586 .83462 .23184 .96 O(C)o .00621 .27687 .27265 .64 O(C)m .02949 .67977 .20669 .76 O(D)o .19037 .11875 .38274 .98 O(D)m .19072 .86760 .41510 1.03