Citation: Bragg, W L (1926). The Structure of Beryl, Be~3~ Al~2~ Si~6~ O~18~. Proceedings of the Royal Society of London, Series A: Mathematical andPhysical Sciences (76,1906-), 111, pp. 691-714.
Formula: Al2 Be3 O18 Si6
Chemical name:Triberyllium dialuminium catena-silicate