M. Akizuki et al., CRYSTAL-STRUCTURES OF THE (011), (610), AND (010) GROWTH SECTORS IN BREWSTERITE, The American mineralogist, 81(11-12), 1996, pp. 1501-1506
Crystal structures were determined by single-crystal X-ray methods for
the {011}, {610}, and {010} growth sectors of brewsterite from Stront
ian, Scotland. Refinements (R(w) = 4.3-6.6%) showed that all three gro
wth sectors are triclinic and that their structures differ slightly.