Citation: Lin, J.-C.; Guggenheim, S. (1983). The crystal structure of a Li, Be-rich brittle mica: a dioctahedral-thiooctahedral intermediate. American Mineralogist, 68, pp. 130-142.
Formula: Al3.68 Be0.58 Ca H2.34 Li0.5 O12 Si1.74
Chemical name:Ca Li0.5 Al2 ((Be0.58 Al1.68 Si1.74) O10) (O H)2 H.34