Macaulayite		(Fe+++,Al)24Si4O43(OH)2
Macdonaldite		BaCa4[Si16O36(OH)2]·10(H2O)
Macedonite		PbTiO3
Macfallite		Ca2(Mn+++,Al)3(SiO4)(Si2O7)(OH)3
Machatschkiite		Ca6(AsO4)(AsO3OH)3(PO4,SO4)·15(H2O)
Mackayite		Fe+++Te2O5(OH)
Mackinawite		(Fe,Ni)9S8
Macphersonite		Pb4(SO4)(CO3)2(OH)2
Macquartite		Pb3Cu(CrO4)(SiO3)(OH)4·2(H2O)
Madocite		Pb17(Sb,As)16S41
Magadiite		NaSi7O13(OH)3·4(H2O)
Magbasite		KBa(Al,Sc)(Mg,Fe++)6Si6O20F2
Maghagendorfite		NaMgMn(Fe++,Fe+++)2(PO4)3
Maghemite		gamma-Fe+++2O3
Magnesio-arfvedsonite		NaNa2(Mg4Fe++)Si8O22(OH)2
Magnesio-axinite	Axinite	Ca2MgAl2BO3Si4O12(OH)
Magnesioanthophyllite		(Mg,Fe++)7Si8O22(OH)2
Magnesioaubertite		(Mg,Cu)Al(SO4)2Cl·14(H2O)
Magnesiocarpholite		MgAl2Si2O6(OH)4
Magnesiochloritoid	Sismondine	MgAl2SiO5(OH)2
Magnesiochromite	Chrompicotite	MgCr2O4
Magnesioclinoholmquistite		Li2(Mg,Fe++)3Al2Si8O22(OH)2
Magnesiocopiapite		MgFe+++4(SO4)6(OH)2·20(H2O)
Magnesiocoulsonite	IMA1994-034	MgV++++2O4
Magnesiocummingtonite		(Mg,Fe++)7Si8O22(OH)2
Magnesiodumortierite	IMA1992-050	(Mg,Ti,[ ])<1(Al,Mg)2Al4Si3O18-y(OH)yB y=2-3
Magnesioferrikatophorite	Catophorite	Na2Ca(Mg,Fe++)4Fe+++Si7AlO22(OH)2
Magnesioferritaramite		Na(CaNa)(Mg,Fe++)3Fe+++2[Si6Al2O22](OH)2
Magnesioferrite	Ceylonite Pleonaste Iron-Magnesia Spinel	MgFe+++2O4
Magnesiofoitite	IMA1998-037	[ ](Mg2Al)Al6(Si6O18)(BO3)3(OH)4
Magnesiogedrite		(Mg,Fe++)5Al2Si6Al2O22(OH)2
Magnesiohastingsite		NaCa2(Mg4Fe+++)Si6Al2O22(OH)2
Magnesioholmquistite		Li2(Mg,Fe++)3Al2Si8O22(OH)2
Magnesiohornblende	Hornblende Alumino-magnesiohornblende	Ca2[Mg4(Al,Fe+++)]Si7AlO22(OH)2
Magnesiohulsite		(Mg,Fe++)2(Mg,Fe+++,Sn++++)O2(BO3)
Magnesiokatophorite	Catophorite Magnesio-aluminokatophorite	Na(CaNa)Mg4AlSi7AlO22(OH)2
Magnesioriebeckite		[ ]Na2(Mg3Fe++2)Si8O22(OH)2
Magnesiosadanagaite		(K,Na)Ca2(Mg,Fe++,Al,Ti)5[(Si,Al)8O22](OH)2
Magnesiotaramite	Magnesioaluminotaramite	Na(CaNa)Mg3ALFe+++[Si6Al2O22](OH)2
Magnesite	Bitter spar	MgCO3
Magnesium-chlorophoenicite		(Mg,Mn)3Zn2(AsO4)(OH,O)6
Magnesium-zippeite		Mg2(UO2)6(SO4)3(OH)10·16(H2O)
Magnesiumastrophyllite		(Na,K)4Mg2(Fe++,Fe+++,Mn)5Ti2Si8O24(O,OH,F)7
Magnetite	Magnetic iron ore Lodestone Strongly Magnetic Magnetism	Fe++Fe+++2O4
Magnetoplumbite		Pb(Fe+++,Mn+++)12O19
Magniotriplite		(Mg,Fe++,Mn)2(PO4)F
Magnocolumbite	Toddite	(Mg,Fe++,Mn)(Nb,Ta)2O6
Magnolite		Hg+2Te++++O3
Magnussonite		Mn++5As+++3O9(OH,Cl)
Mahlmoodite		FeZr(PO4)2·4(H2O)
Mahnertite		(Na,Ca)Cu++3(AsO4)2Cl·5(H2O)
Majakite	Mayakite	PdNiAs
Majorite		Mg3(Fe,Al,Si)2(SiO4)3
Makatite		Na2Si4O8(OH)2·4(H2O)
Makinenite	Maekinenite	NiSe
Makovickyite	IMA1986-027	Ag1.5Bi5.5S9
Malachite		Cu2(CO3)(OH)2
Malanite		Cu(Pt,Ir)2S4
Malayaite		CaSnSiO5 = CaSnOSiO4
Maldonite		Au2Bi
Malinkoite	IMA2000-009	NaBSiO4
Malladrite		Na2SiF6
Mallardite		Mn++SO4·7(H2O)
Mammothite		Pb6Cu4AlSb+++++O2(SO4)2Cl4(OH)16
Manaksite		KNaMn++Si4O10
Manandonite		Li2Al4[(Si2AlB)O10](OH)8
Manasseite		Mg6Al2(CO3)(OH)16·4(H2O)
Mandarinoite		Fe+++2Se3O9·6(H2O)
Mangan-neptunite		KNa2Li(Mn,Fe++)2Ti2Si8O24
Manganarsite		Mn++3As+++204(OH)4
Manganaxinite	Axinite	Ca2Mn++Al2BO3Si4O12(OH)
Manganbabingtonite		Ca2(Mn,Fe++)Fe+++Si5O14(OH)
Manganbelyankinite		(Mn,Ca)(Ti,Nb)5O12·9(H2O)
Manganberzeliite		(Ca,Na)3(Mn,Mg)2(AsO4)3
Manganese-hornesite		(Mn,Mg)3(AsO4)2·8(H2O)
Manganese-shadlunite		(Mn,Pb)(Cu,Fe)8S8
Mangangordonite		(Mn++,Fe++,Mg)Al2(PO4)2(OH)2·8(H2O)
Manganhumite		(Mn,Mg)7(SiO4)3(OH)2
Manganite	Brown manganese ore	MnO(OH)
Manganochromite		(Mn,Fe++)(Cr,V)2O4
Manganocolumbite		(Mn,Fe++)(Nb,Ta)2O6
Manganocummingtonite	Tirodite	[ ]Mn2Mg5Si8O22(OH)2
Manganogrunerite		[ ]Mn2Fe++5Si8O22(OH)
Manganokhomyakovite	IMA1998-043	Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2
Manganolangbeinite		K2Mn2(SO4)3
Manganonaujakasite	IMA1999-031	Na6(Mn,Fe++ )Al4Si8O26
Manganonordite-(Ce)	IMA1997-007	Na3SrCeMn++Si6O17
Manganosegelerite		(Mn,Ca)(Mn,Fe++,Mg)Fe+++(PO4)2(OH)·4(H2O)
Manganosite		MnO
Manganostibite		(Mn++,Fe++)7(SbO4)(AsO4,SiO4)O4
Manganotantalite	Tantalite Coltan	MnTa2O6
Manganotapiolite		(Mn++,Fe++)(Ta,Nb)2O6
Manganotychite		Na6(Mn++,Fe++,Mg)2(SO4)(CO3)4
Manganpyrosmalite	Pyrosmalite	(Mn,Fe++)8Si6O15(OH,Cl)10
Manjiroite		(Na,K)(Mn++++,Mn++)8O16·n(H2O)
Mannardite		BaTi6V+++2O16·(H2O)
Mansfieldite		AlAsO4·2(H2O)
Mantienneite		KMg2Al2Ti(PO4)4(OH)3·15(H2O)
Mapimite		Zn2Fe+++3(AsO4)3(OH)4·10(H2O)
Marcasite		FeS2
Margaritasite		(Cs,K,H3O)2(UO2)2V2O8·(H2O)
Margarite		CaAl2(Al2Si2)O10(OH)2
Margarosanite		Pb(Ca,Mn++)2Si3O9
Marialite	Wernerite	Na4Al3Si9O24Cl
Maricite		NaFe++PO4
Maricopaite		Pb7Ca2(Si,Al)48O100·32(H2O)
Marokite		CaMn+++2O4
Marrite		PbAgAsS3
Marshite		CuI
Marsturite		NaCaMn3[Si5O14(OH)]
Marthozite		Cu[(UO2)3(SeO3)2O2]·8(H2O)
Mascagnite		(NH4)2SO4
Maslovite		PtBiTe
Massicot	Lead Monoxide	PbO
Masutomilite		K(Li,Al,Mn++)3[(Si,Al)4O10](F,OH)2
Masuyite		Pb[(UO2)3O3(OH)2]·3(H2O)
Mathewrogersite		Pb7(Fe,Cu)Al3GeSi12O36·(OH,H2O)6
Mathiasite		(K,Ca,Sr)(Ti,Cr,Fe,Mg)21O38
Matildite	Schapbachite	AgBiS2
Matlockite		PbFCl
Matraite		ZnS
Mattagamite		CoTe2
Matteuccite		NaHSO4·(H2O)
Mattheddleite		Pb20(SiO4)7(SO4)4Cl4
Matulaite		CaAl18(PO4)12(OH)20·28(H2O)
Matveevite		KTiMn2Fe+++2(PO4)4(OH)3·15(H2O)
Maucherite	Placodine Temiskamite	Ni11As8
Maufite		(Mg,Ni)Al4Si3O13·4(H2O) (?)
Mawbyite		Pb(Fe+++Zn)2(AsO4)2(OH,H2O)2
Mawsonite		Cu+6Fe+++2Sn++++S8
Maxwellite		NaFe+++(AsO4)F
Mayenite		Ca12Al14O33
Mayingite	IMA1993-016	IrBiTe
Mazzite		K2CaMg2(Al,Si)36O72·28(H2O)
Mbobomkulite		(Ni,Cu)Al4(NO3,SO4)2(OH)12·3(H2O)
Mcallisterite		Mg2B12O14(OH)12·9(H2O)
Mcalpineite	IMA1992-025	Cu++3Te++++++O6·(H2O)
Mcauslanite		HFe++3Al2(PO4)4F·18(H2O)
Mcbirneyite		Cu3(VO4)2
Mcconnellite		CuCrO2
Mccrillisite	IMA1991-023	NaCs(Be,Li)Zr2(PO4)4·1-2(H2O)
Mcgillite		(Mn,Fe++)8Si6O15(OH)8Cl2
Mcgovernite		Mn9Mg4Zn2As2Si2O17(OH)14
Mcguinnessite		(Mg,Cu)2(CO3)(OH)2
Mckelveyite-(Nd)		Na(Ba,Sr)3Ca(Nd,Ce,La)(CO3)6·3(H2O) (?)
Mckelveyite-(Y)		Ba3Na(Ca,U)Y(CO3)6·3(H2O)
Mckinstryite		(Ag,Cu)2S
Mcnearite		NaCa5H4(AsO4)5·4(H2O)
Medaite		(Mn,Ca)6(V+++++,As)Si5O18(OH)
Medenbachite	IMA1993-048	Bi2Fe+++(Cu,Fe+++)(O,OH)2(OH)2(AsO4)2
Megacyclite		Na8KSi9O18(OH)9·19(H2O)
Meionite	Wernerite	Ca4Al6Si6O24CO3
Meixnerite		Mg6Al2(OH)18·4(H2O)
Melanocerite-(Ce)		(Ce,Th,Ca)5(Si,B)3O12(OH,F)·n(H2O) (?)
Melanophlogite	Melanophlogite-alpha	SiO2·n(C,H,O,S)
Melanophlogite-beta		SiO2·n(C,H,O,S)
Melanostibite		Mn(Sb+++++,Fe+++)O3
Melanotekite		Pb2Fe+++2Si2O9
Melanothallite		Cu2OCl2
Melanovanadite		CaV++++2V+++++2O10·5(H2O)
Melanterite	Pistanite (copper bearing) Green Vitrol Copperas	Fe++SO4·7(H2O)
Melilite		(Ca,Na)2(Al,Mg,Fe++)(Si,Al)2O7
Meliphanite	Melinophane	(Ca,Na)2Be[(Si,Al)2O6(F,OH)]
Melkovite		CaFe+++H6(MoO4)4(PO4)·6(H2O)
Mellite		Al2[C6(COO)6]·16(H2O)
Melonite	Imgreite-discredited	NiTe2
Melonjosephite		CaFe++Fe+++(PO4)2(OH)
Mendipite		Pb3Cl2O2
Mendozavilite		Na(Ca,Mg)2Fe+++6(PO4)2(P+++++Mo++++++11O39)(OH,Cl)10·33(H2O)
Mendozite		NaAl(SO4)2·11(H2O)
Meneghinite		Pb13CuSb7S24
Mengxianminite		(Ca,Na)3(Fe++,Mn++)2Mg2(Sn++++,Zn)5Al8O29
Menshikovite	IMA1993-057	Pd3NiAs3
Mercallite		KHSO4
Mercury	Quecksilber Quicksilver	Hg
Mereheadite	IMA1996-045	Pb2O(OH)Cl
Mereiterite	IMA1993-045 Dana 28.4.3.3	K2Fe++(SO4)2·4(H2O)
Merenskyite		(Pd,Pt)(Te,Bi)2
Merlinoite		(K,Ca,Na,Ba)7Si23Al9O64·23(H2O)
Merrihueite		(K,Na)2(Fe++,Mg)5Si12O30
Merrillite-(Ca)		(Ca,[ ])19Mg2(PO4)14
Merrillite-(Na)		Ca18Na2Mg2(PO4)14
Merrillite-(Y)		Ca16Y2Mg2(PO4)14
Mertieite-I		Pd11(Sb,As)4
Mertieite-II		Pd8(Sb,As)3
Merwinite		Ca3Mg(SiO4)2
Mesolite	Cotton stone	Na2Ca2Al6Si9O30·8(H2O)
Messelite		Ca2(Fe++,Mn)(PO4)2·2(H2O)
Meta-aluminite		Al2(SO4)(OH)4·5(H2O)
Meta-alunogen		Al4(SO4)6·27(H2O)
Meta-ankoleite	Potassium autunite Ankoleite	K2(UO2)2(PO4)2·6(H2O)
Meta-autunite	Meta Autunite	Ca(UO2)2(PO4)2·2-6(H2O)
Meta-uranocircite		Ba(UO2)2(PO4)2·6-8(H2O)
Meta-uranopilite
Meta-uranospinite		Ca(UO2)2(AsO4)2·8(H2O)
Metaborite		HBO2
Metacalciouranoite		(Ca,Na,Ba)U2O7·2(H2O)
Metacinnabar	Onofrite(Se) Saukovite(Cd) Guadalcazarite(Zn)	HgS
Metadelrioite		CaSrV2O6(OH)2·(H2O)
Metahaiweeite		Ca(UO2)2Si6O15·n(H2O), n<5
Metaheinrichite		Ba(UO2)2(AsO4)2·8(H2O)
Metahewettite		CaV6O16·3(H2O)
Metahohmannite		Fe+++2(SO4)2(OH)2·3(H2O)
Metakahlerite		Fe++(UO2)2(AsO4)2·8(H2O)
Metakirchheimerite		Co(UO2)2(AsO4)2·8(H2O)
Metakottigite	Metakoettigite	(Zn,Fe+++,Fe++)3(AsO4)2·8((H2O),OH)
Metalodevite		Zn(UO2)2(AsO4)2·10(H2O)
Metamunirite		Na2[V+++++2O6]or NaVO3
Metanovacekite		Mg(UO2)2(AsO4)2·4-8(H2O)
Metarossite		CaV2O6·2(H2O)
Metaschoderite		Al2(PO4)(VO4)·6(H2O)
Metaschoepite		UO3·n(H2O)(n<2)
Metasideronatrite		Na2Fe+++(SO4)2(OH)·(H2O)
Metastibnite		Sb2S3
Metastudtite		UO4·2(H2O)
Metaswitzerite		Mn3(PO4)2·4(H2O)
Metatorbernite		Cu(UO2)2(PO4)2·8(H2O)
Metatyuyamunite		Ca(UO2)2V2O8·3(H2O)
Metavandendriesscheite		PbU7O22·n(H2O)(n<12)
Metavanmeersscheite		U++++++(UO2)3(PO4)2(OH)6·2(H2O)
Metavanuralite		Al(UO2)2(VO4)2(OH)·8(H2O)
Metavariscite		AlPO4·2(H2O)
Metavauxite		Fe++Al2(PO4)2(OH)2·8(H2O)
Metavivianite	Kertschenite Oxykertschenite	(Fe++3-x,Fe+++x)(PO4)2(OH)x·8-x(H2O), x=0.5
Metavoltine		K4Na4(Fe++,Zn)Fe+++6(SO4)12O2·20(H2O)
Metazellerite		Ca(UO2)(CO3)2·3(H2O)
Metazeunerite		Cu(UO2)2(AsO4)2·8(H2O)
Methanehydrate	Methane Clathrate	8CH4·46(H2O)
Meurigite	IMA1995-022	KFe+++7(PO4)5(OH)7·8(H2O)
Meyerhofferite		Ca2B6O6(OH)10·2(H2O)
Meymacite		WO3·2(H2O)
Mgriite		Cu3AsS3
Miargyrite		AgSbS2
Micheelsenite	IMA1999-033	(Ca,Y)3Al[PO3OH,CO3](CO3)(OH)6·12(H2O)
Michenerite		(Pd,Pt)BiTe
Microcline	Amazonstone - green	KAlSi3O8
Microlite		(Na,Ca)2Ta2O6(O,OH,F)
Microsommite		(Na,Ca,K)7-8(Si,Al)12O24(Cl,SO4)2-3
Miersite		(Ag,Cu)I
Miharaite		PbCu4FeBiS6
Mikasaite	IMA1992-015	Fe+++2(SO4)3
Milarite		K2Ca4Al2Be4Si24O60·(H2O)
Millerite	Hair Pyrites	NiS
Millisite	Lehiite	(Na,K)CaAl6(PO4)4(OH)9·3(H2O)
Millosevichite		(Al,Fe+++)2(SO4)3
Mimetite	Prixite Arsenopyromorphite Mimetesite Campylite	Pb5(AsO4)3Cl
Minamiite		(Na,Ca,K)Al3(SO4)2(OH)6
Minasgeraisite-(Y)		CaY2Be2Si2O10
Minasragrite		VO(SO4)·5(H2O)
Mineevite-(Y)		Na25Ba(Y,Gd,Dy)2(HCO3)4(CO3)11(SO4)2ClF2
Minehillite		(K,Na)2-3Ca28(Zn4Al4Si40)O112(OH)16
Minguzzite		K3Fe+++(C2O4)3·3(H2O)
Minium	Red oxide of lead	Pb++2Pb++++O4
Minnesotaite	Iron Talc	(Fe++,Mg)3Si4O10(OH)2
Minrecordite		CaZn(CO3)2
Minyulite		KAl2(PO4)2(OH,F)·4(H2O)
Mirabilite	Glauber Salt	Na2SO4·10(H2O)
Misenite		K8H8(SO4)7 (?)
Miserite		K(Ca,Ce)5[Si8O22](OH,F)2
Mitridatite		Ca2Fe+++3(PO4)3O2·3(H2O)
Mitryaevaite	IMA1991-035	Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8·6.48(H2O)
Mitscherlichite		K2CuCl4·2(H2O)
Mixite		BiCu6(AsO4)3(OH)6·3(H2O)
Moctezumite		Pb(UO2)(TeO3)2
Modderite		(Co,Fe)As
Mohite		Cu2SnS3
Mohrite	Mohr's salt	(NH4)2Fe++(SO4)2·6(H2O)
Moissanite	Carborundum	SiC
Moluranite		H4U++++(UO2)3(MoO4)7·18(H2O)
Molybdenite	Molybdic ochre Castaingite-(Cu)	MoS2
Molybdite		MoO3
Molybdofornacite		Pb2Cu[(As,P)O4][(Mo,Cr)O4](OH)
Molybdomenite		PbSeO3
Molybdophyllite		Pb9Mg9Si9O24(OH)24
Molysite		Fe+++Cl3
Monazite-(Ce)		(Ce,La,Nd,Th)PO4
Monazite-(La)		(La,Ce,Nd)PO4
Monazite-(Nd)		(Nd,Ce,La,Pr,Sm,Gd)(P,Si)O4
Moncheite		(Pt,Pd)(Te,Bi)2
Monetite		CaHPO4
Mongolite		Ca4Nb6Si5O24(OH)10·5(H2O)
Mongshanite		(Mg,Cr,Fe++)2(Ti,Zr)5O12
Monimolite		(Pb,Ca)2Sb2O7
Monohydrocalcite		CaCO3·(H2O)
Monsmedite		H8K2Tl2(SO4)8·11(H2O)
Montanite		Bi2Te++++++O6·2(H2O)
Montbrayite		(Au,Sb)2Te3
Montdorite		(K,Na)(Fe++,Mn++,Mg)2.5[Si4O10](F,OH)2
Montebrasite		LiAl(PO4)(OH,F)
Monteponite	Cadmium oxide	CdO
Monteregianite-(Y)		(Na,K)6(Y,Ca)2Si16O38·10(H2O)
Montesommaite		(K,Na)9Al9Si23O64·10(H2O)
Montgomeryite		Ca4MgAl4(PO4)6(OH)4·12(H2O)
Monticellite		CaMgSiO4
Montmorillonite	Bentonite	(Na,Ca)0,3(Al,Mg)2Si4O10(OH)2·n(H2O)
Montroseite		(V+++,Fe+++,V++++)O(OH)
Montroyalite		Sr4Al8(CO3)3(OH,F)26·10-11(H2O)
Montroydite		HgO
Mooihoekite		Cu9Fe9S16
Moolooite		Cu++(C2O4)·n(H2O) (n < 1)
Mooreite		(Mg,Zn,Mn)15(SO4)2(OH)26·8(H2O)
Moorhouseite		(Co,Ni,Mn)SO4·6(H2O)
Mopungite		NaSb(OH)6
Moraesite		Be2(PO4)(OH)·4(H2O)
Mordenite	Ptilolite Pseudonatrolite Ashtonite Arduinite	(Ca,Na2,K2)Al2Si10O24·7(H2O)
Moreauite		Al3(UO2)(PO4)3(OH)2·13(H2O)
Morelandite		(Ba,Ca,Pb)5(AsO4,PO4)3Cl
Morenosite	Nickel Vitriol	NiSO4·7(H2O)
Morimotoite	IMA1992-017	Ca3TiFe++Si3O12
Morinite	Jezekite	NaCa2Al2(PO4)2(F,OH)5·2(H2O)
Morozeviczite		(Pb,Fe)3Ge1-xS4
Mosandrite	Rinkolite Rinkite Johnstrupite	Na(Na,Ca)2(Ca,Ce,Y)4(Ti,Nb,Zr)(Si2O7)2(O,F)2F3
Moschelite		Hg+2I2
Moschellandsbergite		Ag2Hg3
Mosesite		Hg2N(Cl,SO4,MoO4,CO3)·(H2O)
Mottanaite-(Ce)	IMA2001-020	Ca4(Ce,Ca)2AlBe2[Si4B4O22]O2
Mottramite	Cuprodescloizite	PbCu(VO4)(OH)
Motukoreaite		Na2Mg38Al24(CO3)13(SO4)8(OH)108·56(H2O)
Mounanaite		PbFe+++2(VO4)2(OH)2
Mountainite		(Ca,Na2,K2)2Si4O10·3(H2O)
Mountkeithite		(Mg,Ni)11(Fe+++,Cr)3(SO4,CO3)3.5(OH)24·11(H2O)
Mourite		U++++Mo++++++5O12(OH)10
Moydite-(Y)		YB(OH)4(CO3)
Mozartite		CaMn+++SiO4(OH)
Mozgovaite	AmMin, Vol 85, p 1562	PbBi4(S,Se)7
Mpororoite		Al(WO3)(OH)3·2(H2O)
Mrazekite		Bi+++2Cu++3(PO4)2O2(OH)2·2(H2O)
Mroseite		CaTe++++(CO3)O2
Muckeite	Mueckeite	CuNiBiS3
Muirite		Ba10Ca2Mn++TiSi10O30(OH,Cl,F)10
Mukhinite		Ca2Al2V+++(SiO4)3(OH)
Mullite		Al6Si2O13
Mummeite		Ag3CuPbBi6S13 or Ag2Cu2Pb2Bi6S13
Mundite		Al(UO2)3(PO4)2(OH)3·5(H2O)
Mundrabillaite		(NH4)2Ca(HPO4)2·(H2O)
Munirite		NaVO3·(2-x)(H2O)
Murataite		(Y,Na)6(Zn,Fe+++)5(Ti,Nb)12O29(O,F)14
Murdochite		PbCu6O8-x(Cl,Br)2x
Murmanite		Na3(Ti,Nb)4(Si2O7)2O4·4(H2O)
Murunskite		K2Cu3FeS4
Muscovite	Binnite (Ba) Isinglass Potash Mica Fuchsite (Cr)	KAl2(Si3Al)O10(OH,F)2
Musgravite		(Mg,Fe++,Zn)2Al6BeO12
Mushistonite		(Cu,Zn,Fe)Sn++++(OH)6
Muskoxite		Mg7Fe+++4O13·10(H2O)
Muthmannite		(Ag,Au)Te
Mutinaite	IMA1996-025	Na3Ca4Si85Al11O192·60(H2O)