S1M3E1C3T1I1T1E1
12 points
SMECTITE is validvalid
a clayey mineral [n SMECTITES]
the family of minerals that are constituents of clays, including bentonite and saponite [n -S]
a clayey mineral [n SMECTITES]
the family of minerals that are constituents of clays, including bentonite and saponite [n -S]