M3A1F4I1C3
12 points
MAFIC is validvalid
pertaining to minerals rich in magnesium and iron [adj]
a generally dark-colored igneous rock with significant amounts of one or more ferromagnesian minerals [n -S]
pertaining to minerals rich in magnesium and iron [adj]
a generally dark-colored igneous rock with significant amounts of one or more ferromagnesian minerals [n -S]