Ca1.2 Mg1.7 Al3.9 Si1.2 O10.3 (O H)1.7

Al_3.9Ca_1.2H_1.7Mg_1.7O₁₂Si_1.2

Akhundov, Yu.A.Mamedov, H.S.Belov, N.V.

Doklady Akademii Nauk SSSR (1961) 137, 167-170

a=5.18Å   b=9.09Å   c=18.89999Å

α=90°   β=85°   γ=90°