Formula: Ca0.3(Fe2+,Mg,Fe3+)3(Si,Al)4O10(OH)2·4H2O
Origin of name: Commission on New Minerals and Mineral Names (CNMMN), iron-rich equivalent of saponite
Crystal system: Monoclinic
Crystal class: ?
Twinning:
Unit cell: a = 5.363, b = 9.306, c = 14.64, β = 94.98°
Colour: Dark green, brownish green
Diaphaneity: Translucent
Luster: Vitreous
Habit:
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