Mafic	Metal-Metal Charge Transf...	Mohs Hardness Scale
Maghemite	Metal Oxidation States	Molal
Magma	Methyl	Mole
Magnesite	Metaminct	Molecular Geometry
Magnetite	Mica	Molecular Orbital Theory
Malachite	Microcline	Molybdenite
Manganese Oxide	Miller Index	Multiple Double/Triple Bo...
Markownikoff Addition Rea...	Mineral	Multiple Twin
Messenger RNA	Miscibility Gap	Muscovite
Metal	Mixture