Macfallite
Mackinawite
Madocite
Maghemite
Maghrebite group
Magnesio-anthophyllite
Magnesio-arfvedsonite
Magnesio-axinite
Magnesiochromite
Magnesiocopiapite
Magnesio-ferri-hornblende
Magnesioferrite
Magnesiofoitite
Magnesio-hastingsite
Magnesio-hornblende
Magnesio-katophorite
Magnesio-riebeckite
Magnesiorowlandite-(Y)
Magnesiosadanagaite
Magnesiostaurolite
Magnesiotaramite
Magnesite
Magnesium-Iron-Manganese Amphibole subgroup
Magnetite
Makovickyite
Malachite
Malacolite
Malacon
Malayaite
Maldonite
Mallardite
Manganaxinite
Manganbabingtonite
Manganberzeliite
Manganese nodule (Diagenetic)
Manganhumite
Manganilvaite
Manganipiemontite-(Sr)
Manganite
Manganoan calcite
Manganocolumbite
Mangano-arfvedsonite
Mangano-cummingtonite
Mangano-grunerite
Manganohörnesite
, Manganohornesite
Mangano-mangani-ungarettiite
Manganophyllite
Manganosite
Manganotantalite
Manganpyrosmalite
Manjiroite
Mansjoite
Marcasite
Margarite
Marialite
Mariposite
Marokite
Marsturite
Marumoite
Mascagnite
Masutomilite
Matildite
Matsubaraite
Maucherite
Mawsonite
Mayaite
Mayenite group
Mayenite supergroup
Mazzite series
Mcalpineite
Mcguinessite
Mckinstryite
Medaite
Meionite
Melaconite
Melanite
Melanophlogite
Melanotekite
Melanterite
Melilite group
Melilite series
Mellcrite
Melonite
Mendozite
Meneghinite
Mercury
Mertieite-I
Mesitite
Mesolite
Messelite
Meta-autunite
Metauranocircite
Metacinnabar
Metahalloysite
Metaschoepite
Metastibnite
Metaswitzerite
Metatorbernite
Metavariscite
Metavivianite
Metavoltine
Metazeunerite
Meurigite-K
Mg-Fe-Mn Amphibole subgroup
Miargyrite
Miassite
Mica supergroup
Mica/Chlorite interstratified mineral
Mica/Hydromica interstratified mineral
Mica/Montmorillonite interstratified mineral
Mica/Smectite interstratified mineral
Mica/Vermiculite interstratified mineral
Michitoshiite-(Cu)
Microcline
Microlite group
Mieite-(Y)
Miguelromeroite
Miharaite
Mikasaite
Milarite
Millerite
Mimetite
Minakawaite
Minamiite
Minium
Minohlite
Minyulite
Mirabilite
Misakiite
Misenite
Mitridatite
Miyahisaite
Mixed layer mineral
Mixite
Mogánite
, Moganite
Molybdenite
Molybdite
Molysite
Momoiite
Monazite-(Ce)
Monazite-(La)
Monazite-(Nd)
Monazite-(Sm)
Mondradite
Monohydrocalcite
Montebrasite
Montroseite
Monticellite
Montmorillonite
Montmorillonite/Celadonite interstratified mineral
Montmorillonite/Chlorite interstratified mineral
Montmorillonite/Clinochlore interstratified mineral
Montmorillonite/Halloysite interstratified mineral
Montmorillonite/Illite interstratified mineral
Montmorillonite/Kaolin interstratified mineral
Montmorillonite/Mica interstratified mineral
Montmorillonite/Sericite interstratified mineral
Montmorillonite/Sudoite interstratified mineral
Montmorillonite/Vermiculite interstratified mineral
Mooihoekite
Mooreite
Moorhouseite
Mordenite
Morenosite
Morinite
Morimotoite
Morion
Mottramite
Mountain Leather
Mozartite
Mpororoite
Mullite
Munakataite
Murakamiite
Muscovite
Muscovite/Paragonite interstratified mineral
Mussite