M3O1N1T1M3O1R1I1L1L1O1N1I1T1E1
19 points
MONTMORILLONITE is validvalid
an alumina-rich clay mineral containing some sodium and magnesium
an alumina-rich clay mineral containing some sodium and magnesium
an alumina-rich clay mineral containing some sodium and magnesium
an alumina-rich clay mineral containing some sodium and magnesium