AM_Reedmergnerite_9 Formula: Na B Si3 O8 Name: Reedmergnerite Unit cell: 7.579 12.22 6.7141 93.373 116.303 92.345 , V=554.92 Space group: C-1 (2)

Downs R T , Yang H , Hazen R M , Finger L W , Prewitt C T , American Mineralogist , 84 (1999) p.333-340, Compressibility mechanisms of alkali feldspars: New data from reedmergnerite, Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140, P = 4.68 GPa