Minerals

Macaulayite

Macdonaldite

Hardness: 3.5 - 4

Macedonite

Hardness: 5.5 - 6

Macfallite

Hardness: 5

Machatschkiite

Hardness: 2 - 3

Machiite

Mackayite

Hardness: 4.5

Mackinawite

Hardness: 2.5

Macphersonite

Hardness: 2.5 - 3

Macquartite

Hardness: 3.5

Madocite

Hardness: 3

Magadiite

Hardness: 2

Magbasite

Hardness: 5

Maghagendorfite

Maghemite

Hardness: 6

Maghrebite

Magnanelliite

Hardness: 3

Magnesia

Magnesio-arfvedsonite

Hardness: 5 - 6

Magnesio-ferri-fluoro-hornblende

Magnesio-fluoro-arfvedsonite

Hardness: 5.5

Magnesio-fluoro-hastingsite

Magnesio-foitite

Hardness: 7

Magnesio-hastingsite

Hardness: 5 - 6

Magnesio-hornblende

Hardness: 5 - 6

Magnesio-lucchesiite

Magnesio-riebeckite

Hardness: 5 - 5.5

Magnesioalterite

Magnesioaubertite

Hardness: 2 - 3

Magnesiobeltrandoite-2n3s

Hardness: 6 - 6.5

Magnesiobermanite

Magnesiocanutite

Hardness: 2.5

Magnesiocarpholite

Hardness: 5 - 5.5

Magnesiochloritoid

Hardness: 6.5

Magnesiochlorophoenicite

Hardness: 3 - 3.5

Magnesiochromite

Hardness: 5.5

Magnesiocopiapite

Hardness: 2.5 - 3

Magnesiocoulsonite

Hardness: 6.5

Magnesiodumortierite

Hardness: 7 - 8

Magnesioferrite

Hardness: 5.5 - 6.5

Magnesiofluckite

Hardness: 2.5

Magnesiohastingsite

Magnesiohatertite

Magnesiohögbomite-2n2s

Magnesiohögbomite-2n3s

Magnesiohögbomite-2n4s

Hardness: 6.5 - 7

Magnesiohögbomite-6n12s

Magnesiohögbomite-6n6s

Magnesiohulsite

Hardness: 6

Magnesiokoritnigite

Hardness: 3

Magnesioleydetite

Hardness: 2

Magnesioneptunite

Hardness: 5 - 6

Magnesionigerite-2n1s

Hardness: 8

Magnesionigerite-6n6s

Magnesiopascoite

Magnesiorowlandite-(y)

Hardness: 5 - 5.5

Magnesiostaurolite

Hardness: 7 - 7.5

Magnesiotaaffeite-2n’2s

Hardness: 8 - 8.5

Magnesiotaaffeite-6n’3s

Hardness: 8 - 8.5

Magnesiovesuvianite

Hardness: 6

Magnesiovoltaite

Hardness: 2.5

Magnesiozippeite

Hardness: 2

Magnetoplumbite

Hardness: 6

Magnioursilite

Magnolite

Magnussonite

Hardness: 3.5 - 4

Mahnertite

Hardness: 2 - 3

Maikainite

Hardness: 4

Majakite

Hardness: 6

Majindeite

Majorite

Hardness: 7 - 7.5

Majzlanite

Hardness: 2 - 3

Makarochkinite

Hardness: 5.5 - 6

Makatite

Mäkinenite

Makotoite

Makovickyite

Hardness: 3.5

Malanite

Hardness: 5

Malayaite

Hardness: 3.5 - 4

Maldonite

Hardness: 1.5 - 2

Maleevite

Hardness: 7

Maletoyvayamite

Malhmoodite

Hardness: 3

Malinkoite

Hardness: 5

Malladrite

Hardness: 3

Mallardite

Hardness: 2

Mallestigite

Hardness: 4

Malyshevite

Mambertiite

Mammothite

Hardness: 3

Manaevite-(ce)

Manaksite

Hardness: 5

Manandonite

Hardness: 2.5 - 3.5

Mandarinoite

Hardness: 2.5

Maneckiite

Hardness: 5

Manganarsite

Hardness: 3

Manganbabingtonite

Hardness: 5.5 - 6

Manganbelyankinite

Hardness: 2 - 2.5

Manganberzeliite

Hardness: 4.5 - 5

Manganflurlite

Mangangordonite

Hardness: 3

Manganhumite

Hardness: 4

Mangani-dellaventuraite

Hardness: 5

Mangani-obertiite

Hardness: 5

Mangani-pargasite

Hardness: 5 - 6

Manganiakasakaite-(la)

Hardness: 5 - 5.5

Manganiandrosite-(ce)

Manganiandrosite-(la)

Manganiceladonite

Manganilvaite

Hardness: 5.5 - 6

Manganite

Hardness: 4

Manganlotharmeyerite

Hardness: 3

Mangano-ferri-eckermannite

Hardness: 5

Mangano-mangani-ungarettiite

Hardness: 6

Manganoarrojadite-(kna)

Manganobadalovite

Manganoblödite

Hardness: 2.5

Manganochromite

Hardness: 5.5

Manganoeudialyte

Hardness: 5 - 6

Manganohörnesite

Hardness: 1

Manganokaskasite

Hardness: 1

Manganokhomyakovite

Hardness: 5 - 6

Manganokukisvumite

Hardness: 5.5 - 6

Manganolangbeinite

Hardness: 2.5 - 3

Manganonaujakasite

Hardness: 5

Manganoneptunite

Hardness: 5 - 6

Manganonordite-(ce)

Hardness: 5 - 5.5

Manganoquadratite

Manganosegelerite

Hardness: 3 - 4

Manganosite

Hardness: 5.5

Manganostibite

Manganotychite

Hardness: 4

Manganvesuvianite

Hardness: 6 - 7

Mangazeite

Hardness: 1 - 2

Manitobaite

Hardness: 5 - 5.5

Manjiroite

Hardness: 3 - 3.5

Mannardite

Hardness: 7

Mansfieldite

Hardness: 3.5 - 4

Mantienneite

Hardness: 3

Maohokite

Maoniupingite-(ce)

Mapimite

Hardness: 3

Mapiquiroite

Hardness: 6

Marathonite

Marchettiite

Marcobaldiite

Hardness: 3 - 3.5

Marécottite

Hardness: 3

Margaritasite

Margarite

Hardness: 4

Margarosanite

Hardness: 2.5 - 3

Marialite

Hardness: 5.5 - 6

Maricite

Hardness: 4

Maricopaite

Hardness: 1 - 1.5

Mariinskite

Hardness: 8.5

Marinaite

Marinellite

Hardness: 5.5

Markascherite

Hardness: 3.5 - 4

Markcooperite

Hardness: 3

Markeyite

Hardness: 1.5 - 2

Markhininite

Marklite

Marokite

Hardness: 6.5

Marrite

Hardness: 3

Marrucciite

Marshite

Hardness: 2.5

Marsturite

Hardness: 6

Marthozite

Martinandresite

Hardness: 4.5

Martinite

Martyite

Hardness: 3

Marumoite

Maruyamaite

Hardness: 7

Mascagnite

Hardness: 2 - 2.5

Maslovite

Hardness: 4.5 - 5

Massicot

Hardness: 2

Masutomilite

Hardness: 2.5

Masuyite

Mathesiusite

Hardness: 2

Mathewrogersite

Hardness: 2

Mathiasite

Hardness: 7.5

Matildite

Hardness: 2.5

Matioliite

Hardness: 5

Matlockite

Hardness: 2.5 - 3

Matsubaraite

Hardness: 5 - 6

Mattagamite

Hardness: 5.5

Matteuccite

Mattheddleite

Hardness: 3.5 - 4.5

Matulaite

Hardness: 1

Matyhite

Maucherite

Hardness: 5

Mauriziodiniite

Hardness: 1

Mavlyanovite

Hardness: 7

Mawbyite

Hardness: 4

Mawsonite

Hardness: 3.5 - 4

Maxwellite

Hardness: 5 - 5.5

Mayingite

Hardness: 4

Mazzettiite

Hardness: 3 - 3.5

Mazzite-mg

Hardness: 4 - 5

Mazzite-na

Mbobomkulite

Mcallisterite

Hardness: 2.5

Mcalpineite

Hardness: 3

Mcauslanite

Hardness: 3.5

Mcbirneyite

Mcconnellite

Hardness: 5.5

Mccrillisite

Hardness: 4 - 4.5

Mcgillite

Hardness: 5

Mcgovernite

Mcguinnessite

Hardness: 2.5

Mckelveyite

Mckelveyite-(y)

Hardness: 3.5 - 4

Mckinstryite

Hardness: 1.5 - 2.5

Mcnearite

Medaite

Medenbachite

Hardness: 4.5

Meerschautite

Megacyclite

Hardness: 2

Megakalsilite

Hardness: 6

Megawite

Meieranite

Hardness: 5.5

Meierite

Hardness: 5.5

Meifuite

Meionite

Hardness: 5 - 6

Meisserite

Hardness: 2

Meitnerite

Hardness: 2

Meixnerite

Hardness: 2

Mejillonesite

Hardness: 4

Melanarsite

Hardness: 4

Melanocerite-(ce)

Hardness: 5 - 6

Melanophlogite

Hardness: 6.5 - 7

Melanostibite

Hardness: 4

Melanotekite

Hardness: 6.5

Melanothallite

Melanovanadite

Hardness: 2.5

Melansonite

Melanterite

Hardness: 2

Melcherite

Melilite

Meliphanite

Hardness: 5 - 5.5

Melkovite

Hardness: 3

Melliniite

Hardness: 8 - 8.5

Mellite

Hardness: 2 - 2.5

Mellizinkalite

Melonite

Hardness: 1 - 1.5

Mélonjosephite

Hardness: 5

Menchettiite

Hardness: 2.5 - 3

Mendeleevite-(ce)

Mendeleevite-(nd)

Hardness: 5 - 5.5

Mendigite

Mendipite

Hardness: 2.5 - 3

Mendozavilite-kca

Hardness: 2.5

Mendozavilite-nacu

Hardness: 2.5

Mendozavilite-nafe

Hardness: 1.5

Mendozite

Hardness: 3

Meneghinite

Hardness: 2.5

Menezesite

Hardness: 4

Mengeite

Mengxianminite

Hardness: 8

Meniaylovite

Menshikovite

Hardness: 5

Menzerite-(y)

Hardness: 6.5 - 7

Mercallite

Mercury

Mereheadite

Hardness: 3.5

Mereiterite

Hardness: 2.5 - 3

Merelaniite

Merenskyite

Hardness: 2 - 3

Meridianiite

Merlinoite

Hardness: 4.5

Merrihueite

Hardness: 5 - 6

Merrillite

Mertieite-i

Hardness: 5.5

Mertieite-ii

Hardness: 6

Merwinite

Hardness: 6

Mesaite

Hardness: 2

Mesolite

Hardness: 5

Messelite

Hardness: 3.5

Meta-aluminite

Hardness: 1 - 2

Meta-alunogen

Meta-ankoleite

Hardness: 2 - 3

Meta-autunite

Hardness: 2 - 2.5

Metaborite

Hardness: 5

Metacalciouranoite

Metacinnabar

Hardness: 3

Metadelrioite

Hardness: 2

Metahaiweeite

Hardness: 3.5

Metaheinrichite

Hardness: 2.5

Metahewettite

Metahohmannite

Metakahlerite

Hardness: 2 - 3

Metakirchheimerite

Hardness: 2 - 2.5

Metaköttigite

Metalodèvite

Hardness: 2 - 3

Metamunirite

Metanatroautunite

Hardness: 2 - 2.5

Metanováčekite

Hardness: 2.5

Metarauchite

Hardness: 2

Metarossite

Hardness: 1 - 2

Metasaléeite

Metaschoderite

Hardness: 2

Metaschoepite

Metasideronatrite

Hardness: 1.5 - 2.5

Metastibnite

Hardness: 2 - 3

Metastudtite

Metaswitzerite

Hardness: 2.5

Metatamboite

Metathénardite

Metatorbernite

Hardness: 2.5

Metatyuyamunite

Hardness: 2

Metauramphite

Metauranocircite-i

Hardness: 2 - 2.5

Metauranopilite

Metauranospinite

Hardness: 2 - 3

Metauroxite

Hardness: 2

Metavandendriesscheite

Hardness: 3

Metavanmeersscheite

Metavanuralite

Metavariscite

Hardness: 3.5

Metavauxite

Hardness: 3

Metavivianite

Hardness: 1.5 - 2

Metavoltine

Hardness: 2.5

Metazellerite

Hardness: 2

Metazeunerite

Hardness: 2 - 2.5

Meurigite-k

Hardness: 3

Meurigite-na

Hardness: 3

Meyerhofferite

Hardness: 2

Meymacite

Meyrowitzite

Hardness: 2

Mgriite

Hardness: 4.5 - 5

Mianningite

Hardness: 6

Miargyrite

Hardness: 2.5

Miassite

Hardness: 5 - 6

Mica

Michalskiite

Micheelsenite

Hardness: 3.5 - 4

Michenerite

Hardness: 2.5

Michitoshiite-(cu)

Microlite

Hardness: 5 - 5.5

Microsommite

Hardness: 6

Middendorfite

Hardness: 3 - 3.5

Middlebackite

Hardness: 2

Mieite-(y)

Hardness: 6

Miersite

Hardness: 2.5 - 3

Miessiite

Hardness: 2 - 2.5

Miguelromeroite

Miharaite

Hardness: 4

Mikasaite

Hardness: 2

Mikehowardite

Milanriederite

Hardness: 6

Milarite

Hardness: 6

Millerite

Hardness: 3 - 3.5

Millisite

Hardness: 5.5

Millosevichite

Millsite

Milotaite

Hardness: 4.5

Minakawaite

Minasgeraisite-(y)

Hardness: 6 - 7

Minasragrite

Hardness: 1 - 2

Mineevite-(y)

Hardness: 4

Minehillite

Hardness: 4

Minguzzite

Minium

Hardness: 2.5

Minjiangite

Hardness: 6

Minnesotaite

Hardness: 1.5 - 2

Minohlite

Hardness: 2

Minrecordite

Hardness: 3.5 - 4

Minyulite

Hardness: 3.5

Mirabilite

Hardness: 1.5 - 2

Mirnyite

Misakiite

Misenite

Miserite

Hardness: 5.5 - 6

Mitridatite

Hardness: 2.5

Mitrofanovite

Mitryaevaite

Mitscherlichite

Hardness: 2.5

Miyahisaite

Hardness: 5

Moctezumite

Hardness: 3

Modderite

Hardness: 4

Moëloite

Moganite

Hardness: 6

Mogovidite

Hardness: 5.5

Mohite

Hardness: 4

Möhnite

Hardness: 3

Mohrite

Hardness: 2 - 2.5

Moissanite

Hardness: 9.5

Mojaveite

Hardness: 1

Molinelloite

Moluranite

Hardness: 3 - 4

Molybdite

Hardness: 3 - 4

Molybdofornacite

Hardness: 2 - 3

Molybdomenite

Hardness: 3.5

Molybdophyllite

Hardness: 3 - 4

Molysite

Momoiite

Hardness: 6.5

Monazite-(ce)

Hardness: 5 - 5.5

Monazite-(la)

Hardness: 5 - 5.5

Monazite-(nd)

Hardness: 5 - 5.5

Monazite-(sm)

Moncheite

Hardness: 2 - 3

Monchetundraite

Monetite

Hardness: 3.5

Mongolite

Hardness: 2

Monipite

Monohydrocalcite

Hardness: 2 - 3

Montanite

Montbrayite

Hardness: 2.5

Montdorite

Montebrasite

Hardness: 5.5 - 6

Monteneroite

Monteneveite

Hardness: 6.5 - 7

Monteponite

Hardness: 3

Monteregianite-(y)

Hardness: 3.5

Montesommaite

Montetrisaite

Hardness: 2 - 3

Montgomeryite

Hardness: 4

Monticellite

Hardness: 5.5

Montmorillonite

Hardness: 1 - 2

Montroseite

Hardness: 5.5 - 6.5

Montroyalite

Hardness: 3.5

Montroydite

Hardness: 1.5 - 2

Mooihoekite

Hardness: 4

Moolooite

Mooreite

Hardness: 3

Moorhouseite

Hardness: 2.5

Mopungite

Hardness: 3

Moraesite

Moraskoite

Hardness: 4 - 5

Mordenite

Hardness: 3 - 4

Moreauite

Morelandite

Hardness: 4.5

Morenosite

Hardness: 2 - 2.5

Morimotoite

Hardness: 7.5

Morinite

Hardness: 4 - 4.5

Morozeviczite

Hardness: 3.5

Morrisonite

Hardness: 2.5

Mosandrite-(ce)

Hardness: 4 - 5

Moschelite

Hardness: 1 - 2

Moschellandsbergite

Hardness: 3.5

Mosesite

Hardness: 3 - 4

Moskvinite-(y)

Hardness: 5

Mössbauerite

Hardness: 2 - 3

Mottanaite-(ce)

Motukoreaite

Hardness: 1 - 1.5

Mounanaite

Mountainite

Hardness: 3

Mountkeithite

Hardness: 2

Mourite

Hardness: 3

Moxuanxueite

Moydite-(y)

Hardness: 1 - 2

Mozartite

Hardness: 6

Mozgovaite

Hardness: 2.5 - 3.5

Mpororoite

Mrázekite

Hardness: 2 - 3

Mroseite

Hardness: 4

Mückeite

Hardness: 3.5

Muirite

Hardness: 2.5

Mukhinite

Hardness: 8

Müllerite

Mullite

Hardness: 6 - 7

Mummeite

Hardness: 4

Munakataite

Hardness: 2.5

Mundite

Mundrabillaite

Hardness: 1 - 2

Munirite

Hardness: 1 - 2

Muonionalustaite

Murakamiite

Hardness: 4.5 - 5

Murashkoite

Murataite-(y)

Hardness: 6 - 6.5

Murchisite

Murdochite

Hardness: 4

Murmanite

Hardness: 2.5 - 3

Murunskite

Hardness: 3

Museumite

Hardness: 1 - 1.5

Musgravite

Mushistonite

Hardness: 4 - 4.5

Muskoxite

Hardness: 3

Muthmannite

Hardness: 2.5

Mutinaite

Mutnovskite

Hardness: 2