F4E1R1R1O1M3A1G2N1E1S1I1A1N1
20 points
FERROMAGNESIAN is validvalid
containing iron and magnesium, as applied to the mafic minerals, e.g. olivine
containing iron and magnesium, as applied to the mafic minerals, e.g. olivine
containing iron and magnesium, as applied to the mafic minerals, e.g. olivine
containing iron and magnesium, as applied to the mafic minerals, e.g. olivine