Clinochlore

Al_1.7Fe_0.33H₈Mg_4.95O₁₈Si_3.02

Nelson, D. O.Guggenheim, S.

American Mineralogist (1993) 78, 1197-1207

a=5.3437Å   b=9.256Å   c=14.422Å

α=90.25°   β=97.28°   γ=89.99°