Alphabetical Directory of Stones
M
Magnesioferrite
Magnesite
Magnetite
Malachite
Malacon
Manganese
Manganite
Mangano
Manganosite
Marble
Marcasite
Margarite
Marialite
Matlockite
Melanite
Meliphane
Melonite
Mercury
Merlinite
Mesolite
Messelite
Meteorite
Mica
Microcline
Microline
Microlite
Milarite
Millerite
Mimetite
Mineral Stone
Mitridatite
Mixite
Mochi Balls
Mohawkite
Moldavite
Molybdenite
Molybdenum
Monazite
Monticellite
Moonstone
Mordenite
Morganite
Morion
Mosandrite
Mother of Pearl
Mottramite
Muirite
Mullite
Muscovite