Citation: Gruner, J W (1934). The crystal structures of talc and pyrophyllite.. Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik,Kristallchemie (-144,1977), 88, pp. 412-419.
Formula: Al2 H2 O12 Si4
Chemical name:Dialuminium phyllo-tetrasilicate dihydroxide