List of minerals recognized by the International Mineralogical Association (M)

Ma


(IUPAC: magnesium hydroxoarsenate monohydrate) (IUPAC: magnesium uranyl disulfate undecahydrate) (IUPAC: trimanganese(II) diarsenate octahydrate) (IUPAC: dipotassium dimanganese(II) trisulfate) (IUPAC: calcium dimanganese(III) tetraoxide) (IUPAC: silver lead trisulfa arsenide) (Hg3Pb16Sb18S46) (IUPAC: copper iodide) (IUPAC: copper(II) triuranyl dioxo diselenite octahydrate) (IUPAC: trizinc dihydro pyrovanadate dihydrate) (IUPAC: lead triuranyl dihydro trioxide trihydrate) (IUPAC: pentapotassium tetrauranyl tetrasulfate (vanadium pentaoxide) tetrawater) (IUPAC: silver disulfa bismuthide) (IUPAC: sodium magnesium pentaluminium hexahydro tetraphosphate dihydrate) (IUPAC: lead chloride fluoride) (IUPAC: tetrastrontium pentatitanium octaoxy di(heptaoxodisilicate))
 * 1) Macaulayite (IMA1981-062) 9.EC.65
 * 2) Macdonaldite (rhodesite: IMA1964-010) 9.EB.05
 * 3) Macedonite (oxide perovskite: IMA1970-010) 4.CC.35   (IUPAC: lead titanium trioxide)
 * 4) Macfallite (IMA1974-057) 9.BG.15   (IUPAC: dicalcium trimanganese(III) tetraoxysilicate heptaoxodisilicate trihydroxyl)
 * 5) Machatschkiite (IMA1976-010) 8.CJ.35   (IUPAC: hexacalcium arsenate tri(hydroxoarsenate) phosphate pentadecahydrate)
 * 6) Machiite (schreyerite: IMA2016-067) 4.0 [no] [no] (IUPAC: dialuminium trititanium nonaoxide)
 * 7) Mackayite (Y: 1944) 4.JL.10   (IUPAC: iron(III) hydro ditellurium(IV) pentaoxide)
 * 8) Mackinawite (IMA1967 s.p., 1964) 2.CC.25
 * 9) Macphersonite (IMA1982-105) 5.BF.40   (IUPAC: tetralead dihydro sulfate dicarbonate)
 * 10) Macquartite (IMA1979-037) 9.HH.05   (IUPAC: dicopper heptalead tetrachromate di(tetraoxysilicate) dihydroxyl)
 * 11) Madeiraite (wöhlerite: IMA2021-077) [no] [no]
 * 12) Madocite (madocite: IMA1966-015) 2.LB.30   (Pb19(Sb,As)16S43)
 * 13) Magadiite (IMA1967-017) 9.EA.20
 * 14) Magbasite (IMA1968 s.p., 1965) 9.HA.25
 * 15) Magganasite (IMA2021-112) 8.BN. [no] [no]
 * 16) MaghagendorfiteQ (alluaudite: IMA19 s.p., IMA1979 s.p.) 8.AC.10
 * 17) Maghemite (spinel: 1927) 4.BB.15   (((Fe3+)0.67◻0.33)(Fe3+)2O4)
 * 18) Maghrebite (laueite, laueite: IMA2005-044) 8.DC.30  [no] (IUPAC: magnesium dialuminium dihydro diarsenate octahydrate)
 * 19) Magnanelliite (alcaparrosaite: IMA2019-006) 7.0 [no] [no] (IUPAC: tripotassium diiron(III) hydro tetrasulfate diwater)
 * 20) Magnéliite (IMA2021-111) 4.BB. [no] [no] (IUPAC: dititanium(III) dititanium(IV) heptaoxide)
 * 21) Magnesioalterite (alterite: IMA2020-050) [no] [no]
 * 22) Magnesio-arfvedsonite [Na-amphibole: IMA2013-137, IMA2012 s.p., 1957] 9.DE.25
 * 23) Magnesioaubertite (aubertite: IMA1982-015) 7.DB.05   (IUPAC: magnesium aluminium chloro disulfate tetradecahydrate)
 * 24) Magnesiobeltrandoite-2N3S (högbomite: IMA2016-073) 4.0 [no] [no]
 * 25) Magnesiobermanite (arthurite: IMA2018-115) 8.0 [no] [no] (IUPAC: magnesium dimanganese(III) dihydro diphosphate tetrahydrate)
 * 26) Magnesiocanutite (alluaudite: IMA2016-057) 8.0 [no] [no] (IUPAC: sodium vacancy magnesium dimanganese diarsenate dihydroxoarsenate)
 * 27) Magnesiocarpholite (carpholite: IMA1978-027) 9.DB.05   (IUPAC: magnesium dialuminium hexaoxydisilicate tetrahydroxyl)
 * 28) Magnesiochloritoid (IMA1987-J, 1983) 9.AF.85   (IUPAC: magnesium dialuminium oxy(tetraoxysilicate) dihydroxyl)
 * 29) Magnesiochlorophoenicite (chlorophoenicite: IMA1981 s.p., 1935 Rd) 8.BE.35
 * 30) Magnesiochromite (spinel, spinel: 1873) 4.BB.05   (IUPAC: magnesium dichromium(III) tetraoxide)
 * 31) Magnesiocopiapite (copiapite: 1939) 7.DB.35   (IUPAC: magnesium tetrairon(III) dihydro hexasulfate icosahydrate)
 * 32) Magnesiocoulsonite (spinel, spinel: IMA1994-034) 4.BB.05   (IUPAC: magnesium divanadium tetraoxide)
 * 33) Magnesiodumortierite (dumortierite: IMA1992-050 Rd) 9.AJ.10  [no]
 * 34) Magnesio-ferri-fluoro-hornblende [Ca-amphibole: IMA2014-091] 9.D [no] [no]
 * 35) Magnesio-ferri-hornblende [Ca-amphibole: IMA2021-100] 9.DE.10 [no] [no]
 * 36) Magnesioferrite (spinel, spinel: 1859) 4.BB.05   (IUPAC: magnesium diiron(III) tetraoxide)
 * 37) Magnesiofluckite (fluckite: IMA2017-103) 8.0 [no] [no] (IUPAC: calcium magnesium di(hydroxoarsenate) diwater)
 * 38) Magnesio-fluoro-arfvedsonite [Na-amphibole: IMA2012 s.p., fluoromagnesioarfvedsonite (IMA1998-056)] 9.DE.25  [no]
 * 39) Magnesio-fluoro-hastingsite [Ca-amphibole: IMA2012 s.p., fluoro-magnesiohastingsite (IMA2005-002)] 9.DE.15
 * 40) Magnesiofoitite (tourmaline: IMA1998-037 Rd) 9.CK.05  [no]
 * 41) Magnesio-hastingsite [Ca-amphibole: IMA2012 s.p., IMA1997 s.p., magnesiohastingsite (1928)] 9.DE.15
 * 42) Magnesiohatertite (alluaudite: IMA2016-078) 8.0 [no] [no] (NaNaCa(MgFe(3+))(AsO4)3)
 * 43) Magnesiohögbomite (högbomite, magnesiohögbomite) 4.CB.20
 * 44) Magnesiohögbomite-2N2S (IMA2001 s.p., 1916 Rd) 4.CB.20
 * 45) Magnesiohögbomite-2N3S (IMA2001 s.p., 1963 Rd) 4.CB.20  [no]
 * 46) Magnesiohögbomite-2N4S (IMA2010-084) 4.CB.20 [no]
 * 47) Magnesiohögbomite-6N6S (IMA2001 s.p., 1990 Rd) 4.CB.20  [no]
 * 48) Magnesio-hornblende [Ca-amphibole: IMA2017-059, IMA2012 s.p., IMA1997 s.p., magnesiohornblende (1965)] 9.DE.10
 * 49) Magnesiohulsite (hulsite: IMA1983-074) 6.AB.45
 * 50) Magnesiokoritnigite (koritnigite: IMA2013-049) 8.0 [no] [no]
 * 1) Magnesioleydetite (leydetite: IMA2017-063) 7.0 [no] [no]
 * 1) Magnesio-lucchesiite (tourmaline: IMA2019-025) 9.CK. [no] [no]
 * 2) Magnesioneptunite (neptunite: IMA2009-009) 9.EH.05 [no] [no]
 * 3) Magnesionigerite (nigerite, magnesionigerite) 4.FC.20
 * 4) Magnesionigerite-2N1S (IMA2001 s.p., IMA1988-010) 4.FC.20
 * 5) Magnesionigerite-6N6S (IMA2001 s.p., 1989) 4.FC.20  [no]
 * 6) Magnesiopascoite (pascoite: IMA2007-025) 4.HC.05   (Ca2Mg(V(5+))10O28*16H2O)
 * 7) Magnesio-riebeckite [Na-amphibole: IMA2012 s.p., IMA1997 s.p., magnesioriebeckite (1957)] 9.DE.25
 * 8) Magnesiorowlandite-(Y) (rowlandite: IMA2012-010) 9.H?. [no]  (IUPAC: tetrayttrium (magnesium,iron) difluoro di(heptadisilicate))
 * 9) Magnesiostaurolite (IMA1992-035) 9.AF.30  [no]
 * 10) Magnesiotaaffeite (taaffeite, magnesiotaaffeite) 04.FC.25
 * 11) Magnesiotaaffeite-2N2S (IMA2001 s.p., 1951) 4.FC.25  [no] (IUPAC: trimagnesium beryllium octaluminium hexadecaoxide)
 * 12) Magnesiotaaffeite-6N3S (IMA2001 s.p., IMA1966-041) 4.FC.25   (IUPAC: dimagnesium beryllium hexaluminium dodecaoxide)
 * 13) Magnesiovesuvianite (vesuvianite: IMA2015-104) 9.BG. [no] [no]
 * 14) Magnesiovoltaite (voltaite: IMA2015–095) 7.0 [no] [no]
 * 15) Magnesiozippeite (zippeite: IMA1971-007 Rd) 7.EC.05   (Mg(UO2)2(SO4)O2*3.5H2O)
 * 16) Magnesite (calcite: IMA1962 s.p., 1808) 5.AB.05   (IUPAC: magnesium carbonate)
 * 17) Magnetite (spinel, spinel: 1789) 4.BB.05   (IUPAC: iron(II) diiron(III) tetraoxide)
 * 18) Magnetoplumbite (magnetoplumbite: 1925) 4.CC.45   (IUPAC: lead dodecairon(III) nonadecaoxide)
 * 19) Magnioursilite (ursilite: 1957) 9.AK.35 [no] [no] (IUPAC: tetramagnesio tetrauranyl penta(pentaoxydisilicate) hexahydroxyl icosahydrate)
 * 20) Magnolite (tellurite: 1878) 4.JK.60   (IUPAC: (dimercury) tellurite)
 * 21) Magnussonite (IMA1984 s.p., 1957 Rd) 4.JB.15
 * 22) Mahnertite (IMA1994-035) 8.DH.45   (IUPAC: (sodium, calcium, potassium) tricopper chloro diarsenate pentahydrate)
 * 23) Maikainite (germanite: IMA1992-038) 2.CB.30   (IUPAC: decacopper triiron molybdenum trigermanide hexadecasulfide)
 * 24) Majakite (IMA1974-038) 2.AC.25e   (IUPAC: palladium nickel arsenide)
 * 25) Majindeite (nolanite: IMA2012-079) 4.CB.40 [no] [no] (IUPAC: dimagnesium trimolybdenum octaoxide)
 * 26) Majorite (garnet, garnet: IMA1969-018) 9.AD.25   (IUPAC: trimagnesio (magnesiosilicon) tri(tetraoxysilicate))
 * 27) Majzlanite (IMA2018-016) 7.0 [no] [no] (IUPAC: dipotassium sodium (zinc sodium) calcium tetrasulfate)
 * 28) Makarochkinite (sapphirine: IMA2002-009a) 9.DH.40  [no]
 * 29) Makatite (IMA1969-003) 9.EE.45   (IUPAC: disodium octaoxy tetrasilicate dihydroxyl tetrahydrate)
 * 30) Mäkinenite (millerite: IMA1967 s.p., 1964) 2.CC.20   (IUPAC: nickel selenide)
 * 31) Makotoite (IMA2020-071) 2.0 [no] [no]
 * 32) Makovickyite (pavonite: IMA1986-027) 2.JA.05d
 * 33) Malachite (malachite: 1747) 5.BA.10   (IUPAC: dicopper dihydro carbonate)
 * 34) Malanite (spinel, linnaeite: IMA1995-003) 2.DA.05   (Cu1+(Ir3+Pt4+)S4)
 * 35) Malayaite (titanite: IMA1964-024) 9.AG.15   (IUPAC: calcium tin oxytetraoxysilicate)
 * 36) Maldonite (metalloid alloy: 1870) 2.AA.40   (IUPAC: digold bismuthide)
 * 37) Maleevite (danburite: IMA2002-027) 9.FA.65   (IUPAC: barium octaoxy diboro disilicate)
 * 38) Maletoyvayamite (IMA2019-021) 2.0 [no] [no] (IUPAC: trigold tetraselenide hexatelluride)
 * 39) Malhmoodite (IMA2002-D, IMA1992-001) 8.CE.75   (IUPAC: iron(II) zirconium diphosphate tetrahydrate)
 * 40) Malinkoite (beryllonite: IMA2000-009) 9.FA.10  [no] (IUPAC: sodium tetraoxy borosilicate)
 * 41) Malladrite (fluorosilicate: 1926) 3.CH.05   (IUPAC: disodium hexafluorosilicate)
 * 42) Mallardite (melanterite: 1879) 7.CB.35   (IUPAC: manganese(II) sulfate heptahydrate)
 * 43) Mallestigite (fleischerite: IMA1996-043) 7.DF.25   (IUPAC: trilead antimony hexahydro sulfate arsenate trihydrate)
 * 44) Malyshevite (IMA2006-012) 2.GA.25  [no] (IUPAC: palladium copper trisulfa bismuthide)
 * 45) Mambertiite (gelosaite: IMA2013-098) 4.0 [no] [no] (BiMo$5+ 2.8$O8(OH))
 * 46) Mammothite (IMA1983-076a) 7.BC.60
 * 47) Manaevite-(Ce) (vesuvianite: IMA2018-046) 9.BG. [no] [no]
 * 48) Manaksite (litidionite: IMA1990-024) 9.DG.70   (IUPAC: potassium sodium manganese(II) decaoxy tetrasilicate)
 * 49) Manandonite (serpentine: 1912) 9.ED.15   (IUPAC: dilithium tetraluminium decaoxy (boroaluminodisilicate) octahydroxyl)
 * 50) Mandarinoite (mandarinoite: IMA1977-049) 4.JH.15   (IUPAC: diiron(III) triselenite hexahydrate)
 * 51) Maneckiite (wicksite: IMA2015-056) 8.0 [no] [no]
 * 52) Manganarsite (IMA1985-037) 4.JB.10   (IUPAC: trimanganese(II) tetrahydro diarsenic(III) tetraoxide)
 * 53) Manganbabingtonite (rhodonite: IMA1971 s.p., 1966) 9.DK.05
 * 54) ManganbelyankiniteQ (Y: 1957) 4.FM.25
 * 55) Manganberzeliite (garnet: 1878) 8.AC.25   (IUPAC: (sodium dicalcium) dimanganese(II) triarsenate)
 * 56) ManganeseD (Y: 2001) 1.AE.30 [no] [no]
 * 57) Manganflurlite (flurlite: IMA2017-076) 8.0 [no] [no]
 * 58) Mangangordonite (laueite, laueite: IMA1989-023) 8.DC.30   (IUPAC: manganese dialuminium dihydro diphosphate octahydrate)
 * 59) Manganhumite (humite: IMA1969-021) 9.AF.50   (IUPAC: heptamanganese(II) tri(tetraoxysilicate) dihydroxyl)
 * 60) Manganiakasakaite-(La) (epidote: IMA2017-028) 9.B?. [no] [no]
 * 61) Manganiandrosite (epidote, allanite) 9.BG.05
 * 62) Manganiandrosite-(Ce) (IMA2002-049) 9.BG.05
 * 63) Manganiandrosite-(La) (IMA1994-048) 9.BG.05b  [no]
 * 64) Manganiceladonite (mica: IMA2015-052) 9.E?. [no] [no]
 * 65) Mangani-dellaventuraite [O-dominant amphibole: IMA2012 s.p., dellaventuraite (IMA2003-061)] 9.DE.25  [no]
 * 66) Manganilvaite (ilvaite: IMA2002-016) 9.BE.07   (IUPAC: calcium iron(II) iron(III) manganese(II) heptaoxodisilicate oxohydroxyl)
 * 67) Mangani-obertiite [O-dominant amphibole: IMA2014 s.p., ferri-obertiite (IMA2012 s.p.), obertiite (IMA1998-046)] 9.DE.25  [no]
 * 68) Mangani-pargasite (Ca-amphibole: IMA2018-151) 9.D?. [no] [no]
 * 69) Manganite ("O(OH)" group: 1826) 4.FD.15   (IUPAC: hydromanganese(III) oxide)
 * 70) Manganlotharmeyerite (tsumcorite: IMA2001-026) 8.CG.15   (IUPAC: calcium dimanganese(III) dihydro diarsenate)
 * 71) Manganoarrojadite-(KNa) (arrojadite: IMA2020-003) 8.0 [no] [no]
 * 72) Manganobadalovite (alluaudite: IMA2020-035) [no] [no]
 * 73) Manganoblödite (blödite: IMA2012-029) 7.C?. [no] [no] (IUPAC: disodium managanese disulfate tetrahydrate)
 * 74) Manganochromite (spinel, spinel: IMA1975-020) 4.BB.05   (IUPAC: manganese(II) dichromium tetraoxide)
 * 75) Manganoeudialyte (eudialyte: IMA2009-039) 9.CO.10 [no]
 * 76) Mangano-ferri-eckermannite [Na-amphibole: IMA2012 s.p., kôzulite (IMA1968-028)] 9.DE.25
 * 77) Manganohörnesite (vivianite: IMA2007 s.p., 1951) 8.CE.40
 * 1) Manganokaskasite (valleriite: IMA2013-026) 2.0 [no]
 * 1) Manganokhomyakovite (eudialyte: IMA1998-043) 9.CO.10  [no]
 * 2) Manganokukisvumite (IMA2002-029) 9.DB.20
 * 3) Manganolangbeinite (langbeinite: 1926) 7.AC.10
 * 1) Mangano-mangani-ungarettiite [O-dominant amphibole: IMA2012 s.p., ungarettiite (IMA1994-004)] 9.DE.25  [no]
 * 2) Manganonaujakasite (IMA1999-031) 9.EG.10  [no]
 * 3) Manganoneptunite (neptunite: IMA2007 s.p., 1923) 9.EH.05
 * 4) Manganonordite-(Ce) (nordite: IMA1997-007) 9.DO.15  [no]
 * 5) Manganoquadratite (quadratite: IMA2011-008) 2.GC.25 [no] [no] (IUPAC: silver manganese trisulfa arsenide)
 * 6) Manganosegelerite (overite: IMA1984-055) 8.DH.20   (IUPAC: dimanganese(II) iron(III) hydro diphosphate tetrahydrate)
 * 7) ManganoshadluniteN (Y: 1973) 2.BB.15 [no]  ((Mn,Pb,Cd)(Cu,Fe)8S8)
 * 8) Manganosite (rocksalt, periclase: 1874) 4.AB.25   (IUPAC: manganese(II) oxide)
 * 9) Manganostibite (Y: 1884) 4.BA.10   (IUPAC: heptamanganese(II) antimony(V) arsenic(V) dodecaoxide)
 * 10) Manganotychite (northupite: IMA1989-039) 5.BF.05   (IUPAC: hexasodium dimanganese(II) tetracarbonate sulfate)
 * 11) Manganvesuvianite (vesuvianite: IMA2000-040) 9.BG.35  [no]
 * 12) Mangazeite (IMA2005-021a) 7.DE.05   (IUPAC: dialuminium tetrahydro sulfate trihydrate)
 * 13) Manitobaite (alluaudite: IMA2008-064) 8.AC.18 [no] [no] (IUPAC: hexadecasodium pentacosamanganese(II) octaluminium tricontaphosphate)
 * 14) Manjiroite (hollandite, coronadite: IMA1966-009) 4.DK.05a
 * 15) Mannardite (hollandite, coronadite: IMA1983-013) 4.DK.05b
 * 16) Mansfieldite (Y: 1948) 8.CD.10   (IUPAC: aluminium arsenate dihydrate)
 * 17) Mantienneite (IMA1983-048) 8.DH.35   (IUPAC: potassium dimagnesium dialuminium titanium trihydro tetraphosphate pentadecahydrate)
 * 18) Maohokite (post-spinel: IMA2017-047) 4.0 [no] [no] (IUPAC: magnesium diiron tetraoxide)
 * 19) Maoniupingite-(Ce) (chevkinite: IMA2003-017) 9.BE.70  [no]
 * 20) Mapimite (IMA1978-070) 8.DC.55   (IUPAC: dizinc triiron(III) tetrahydro triarsenate decahydrate)
 * 21) Mapiquiroite (crichtonite: IMA2013-010) 4.0 [no] [no]
 * 22) Marathonite (IMA2016-080) 2.0 [no] [no] (Pd25Ge9)
 * 23) Marcasite (marcasite: 1751) 2.EB.10a   (IUPAC: iron disulfide)
 * 24) Marchettiite (IMA2017-066) 10.0 [no] [no] (IUPAC: ammonium hydrogen urate)
 * 25) Marcobaldiite (geocronite: IMA2015-109) 2.0 [no] [no]
 * 26) Marécottite (IMA2001-056) 7.EC.15   (IUPAC: trimagnesium hexaoxo octauranyl dihydro tetrasulfate octacosahydrate)
 * 27) Margaritasite (IMA1980-093) 4.HB.05   (IUPAC: dicesium diuranyl divanadate monohydrate)
 * 28) Margarite (mica: IMA1998 s.p., 1821) 9.EC.30   (IUPAC: calcium dialuminium dialuminodisilicate decaoxydihydroxyl)
 * 29) Margarosanite (Y: 1916) 9.CA.25   (IUPAC: dicalcium lead nonaoxy trisilicate)
 * 30) Mariakrite (hydrotalcite: IMA2021-097)
 * 31) Marialite (scapolite: 1866) 9.FB.15
 * 32) Marićite (IMA1976-024) 8.AC.20   (IUPAC: sodium iron(II) phosphate)
 * 33) Maricopaite (zeolitic tectosilicate: IMA1985-036) 9.GD.35
 * 34) Mariinskite (olivine: IMA2011-057) 4.B?. [no]  (IUPAC: dichromium beryllium tetraoxide)
 * 35) Marinaite (ludwigite: IMA2016-021) 6.0 [no] [no] (IUPAC: dicopper iron(III) dioxoborate)
 * 36) Marinellite (cancrinite-sodalite: IMA2002-021) 9.FB.05  [no]
 * 37) Markascherite (IMA2010-051) 7.G?. [no] [no] (IUPAC: tricopper tetrahydro molybdate)
 * 38) Markcooperite (uranyl-tellurium oxysalt: IMA2009-045) 7.E?. [no] [no] (IUPAC: dilead uranyl tellurium hexaoxide)
 * 39) Markeyite (markeyite: IMA2016-090) 5.0 [no] [no] (IUPAC: nonacalcium tetrauranyl tridecacarbonate octacosahydrate)
 * 40) Markhininite (IMA2012-040) 7.0 [no] [no] (IUPAC: thallium bismuth disulfate)
 * 41) Marklite (IMA2015-101) 5.0 [no] [no] (IUPAC: pentacopper hexahydro dicarbonate hexahydrate)
 * 42) Marokite (post-spinel: IMA1963-005) 4.BC.05
 * 1) Marrite (Y: 1905) 2.JB.15
 * 1) Marrucciite (IMA2006-015) 2.JB.60  [no]
 * 1) Marshite (sphalerite: 1892) 3.AA.05
 * 1) Marsturite (rhodonite: IMA1977-047) 9.DK.05
 * 2) Marthozite (IMA1968-016) 4.JJ.05
 * 1) Martinandresite (zeolitic tectosilicate: IMA2017-038) 9.G? [no] [no]
 * 2) Martinite (gyrolite: IMA2001-059) 9.EE.80  [no]
 * 3) Martyite (volborthite: IMA2007-026) 8.FD.05
 * 1) Marumoite (IMA1998-004) 2.HC.05g  [no] (Pb32As40S92)
 * 2) Maruyamaite (tourmaline: IMA2013-123) 9.CK. [no] [no]
 * 3) Mascagnite (arcanite: 1777) 7.AD.05   (IUPAC: diammonium sulfate)
 * 4) Maslovite (pyrite: IMA1978-002) 2.EB.25   (IUPAC: platinum bismuthide telluride)
 * 5) Massicot (Y: 1841) 4.AC.25   (IUPAC: lead oxide)
 * 6) Masutomilite (mica: IMA1974-046) 9.EC.20
 * 7) Masuyite (Y: 1947) 4.GB.35
 * 1) Mathesiusite (mathesiusite: IMA2013-046) 7.DG. [no] [no]
 * 1) Mathewrogersite (IMA1984-042) 9.CJ.55
 * 2) Mathiasite (crichtonite: IMA1982-087) 4.CC.40
 * 3) Matildite (IMA1982 s.p., 1883) 2.JA.20
 * 1) Matioliite (dufrenite: IMA2005-011) 8.DK.15  [no]
 * 1) Matlockite (matlockite: 1851) 3.DC.25
 * 1) Matsubaraite (chevkinite: IMA2000-027) 9.BE.70  [no]
 * 1) Mattagamite (marcasite: IMA1972-003) 2.EB.10a   (IUPAC: cobalt ditelluride)
 * 2) Matteuccite (Y: 1950) 7.CD.05   (IUPAC: sodium hydroxosulfate monohydrate)
 * 3) Mattheddleite (apatite, tritomite: IMA1985-019) 9.AH.25   (Pb5(SiO4)1.5(SO4)1.5Cl)
 * 4) Matthiasweilite (IMA2021-069) [no] [no]
 * 5) Matulaite (IMA1977-013 Rd) 8.DK.30   (IUPAC: iron(III) heptaluminium octahydro tetraphosphate di(hydroxophosphate) octawater octahydrate)
 * 6) Matyhite (whitlockite: IMA2015-121) 8.0 [no] [no] (Ca9(Ca0.5☐0.5)Fe2+(PO4)7)
 * 7) Maucherite (metalloid alloy: 1913) 2.AB.15   (IUPAC: undecanickel octarsenide)
 * 8) Mauriziodiniite (lucabindiite: IMA2019-036) 4.0 [no] [no] (IUPAC: ammonio iodo di(diarsenic trioxide))
 * 9) Mavlyanovite (silicide: IMA2008-026) 1.BB.05   (IUPAC: pentamanganese trisilicide)
 * 10) Mawbyite (tsumcorite: IMA1988-049) 8.CG.15   (IUPAC: lead diiron(III) dihydro diarsenate)
 * 11) Mawsonite (IMA1964-030) 2.CB.20   (IUPAC: hexacopper diiron tin octasulfide)
 * 12) Maxwellite (titanite: IMA1987-044) 8.BH.10   (IUPAC: sodium iron(III) fluoro arsenate)
 * 13) Mayingite (pyrite: IMA1993-016) 2.EB.25   (IUPAC: iridium bismuthide telluride)
 * 14) Mazzettiite (petrovicite: IMA2004-003) 2.LB.40   (IUPAC: trisilver mercury lead antimonide pentatelluride)
 * 15) Mazzite (zeolitic tectosilicate) 9.GC.20
 * 16) Mazzite-Mg (IMA1973-045) 9.GC.20
 * 17) Mazzite-Na (IMA2003-058) 9.GC.20  [no]

Mb – Me

 * 1) Mbobomkulite (chalcoalumite: IMA1979-078) 5.ND.10
 * 2) Mcallisterite (IMA1963-012) 6.FA.10
 * 3) Mcalpineite (tellurium oxysalt: IMA1992-025) 7.DE.55   (IUPAC: tricopper tellurium(VI) hexaoxide)
 * 4) Mcauslanite (IMA1986-051) 8.DB.60   (IUPAC: triiron(II) dialuminium fluoro triphosphate hydroxophosphate octadecahydrate)
 * 5) Mcbirneyite (howardevansite: IMA1985-007) 8.AB.35   (IUPAC: tricopper divanadate)
 * 6) Mcconnellite (IMA1967-037) 4.AB.15   (IUPAC: copper(I) chromium(III) dioxide)
 * 7) Mccrillisite (IMA1991-023) 8.CA.20
 * 8) Mcgillite (pyrosmalite: IMA1979-024) 9.EE.10
 * 9) Mcgovernite (hematolite: 1927) 8.BE.45
 * 10) Mcguinnessite (malachite: IMA1977-027) 5.BA.10   (IUPAC: copper magnesium dihydro carbonate)
 * 11) Mckelveyite-(Y) (IMA1964-025 Rd) 5.CC.05
 * 12) Mckinstryite (IMA1966-012) 2.BA.40   (IUPAC: pentasilver tricopper tetrasulfide)
 * 13) Mcnearite (IMA1980-017) 8.CJ.55   (IUPAC: sodium pentacalcium arsenate tetra(hydroxoarsenate) tetrahydrate)
 * 14) Medaite (medaite: IMA1979-062) 9.BJ.30   (IUPAC: hexamanganese(II) vanadatopentasilicate octadecaoxy hydroxyl)
 * 15) Medenbachite (IMA1993-048) 8.BK.10   (IUPAC: dibismuth iron(III) copper(II) trihydro oxo diarsenate)
 * 16) Medvedevite (IMA2021-082)
 * 17) Meerschautite (IMA2013-061) 2.0 [no] [no]
 * 18) Megacyclite (IMA1991-015) 9.CP.10
 * 19) Megakalsilite (feldspathoid, nepheline: IMA2001-008) 9.FA.05  [no] (IUPAC: potassium aluminium tetraoxosilicate)
 * 20) Megawite (perovskite, perovskite: IMA2009-090) 4.CC.30 [no]  (IUPAC: calcium tin trioxide)
 * 21) Meieranite (nordite: IMA2015-009) 9.0 [no] [no]
 * 22) Meierite (zeolitic tectosilicate: IMA2014-039) 9.G [no] [no]
 * 23) Meifuite (IMA2019-101) 9.E [no] [no]
 * 24) Meionite (scapolite: 1801) 9.FB.15
 * 25) Meisserite (IMA2013-039) 7.0 [no]  (IUPAC: pentasodium uranyl trisulfate hydrogen sulfate (H2O))
 * 26) Meitnerite (johannite: IMA2017-065) 7.0 [no] [no]
 * 27) Meixnerite (hydrotalcite: IMA1974-003) 4.FL.05   (IUPAC: hexamagnesium dialuminium octadecahydroxide tetrahydrate)
 * 28) Mejillonesite (IMA2010-068) 8.D0. [no] [no] (IUPAC: sodium dimagnesium tetrahydro hydroxophosphate phosphate monohydrate)
 * 29) Melanarsite (IMA2014-048) 8.0 [no] [no] (IUPAC: tripotassium heptacopper iron(III) tetraoxo tetrarsenate)
 * 30) Melanocerite-(Ce)Q (apatite: 1887, 1890) 9.AJ.20   (Note: might be tritomite-(Ce))
 * 31) Melanophlogite (IMA1962 s.p. Rd) 4.DA.25
 * 32) Melanostibite (corundum: IMA1971 s.p., 1893) 4.CB.05
 * 33) Melanotekite (Y: 1880) 9.BE.80   (IUPAC: dilead diiron(III) dioxo heptaoxodisilicate)
 * 34) Melanothallite (Y: 1870) 3.DA.05   (IUPAC: dicopper oxo dichloride)
 * 35) Melanovanadite (Y: 1921) 4.HE.05   (IUPAC: calcium divanadium(IV) divanadium(V) decaoxide pentahydrate)
 * 36) Melansonite (rhodesite: IMA2018-168) 9.E [no] [no]
 * 37) Melanterite (melanterite: 1557) 7.CB.35   (IUPAC: iron(II) sulfate heptahydrate)
 * 38) Melcherite (polyoxometalate: IMA2015-018) 4.0 [no] [no]
 * 39) ( Melilite sorosilicate group (Y: 1796) 09.BB.10 ) ( Definition: tetragonal crystal system sorosilicates, with (XSiO7)−6, where X is Si, Al or B )
 * 40) Meliphanite (Y: 1852) 9.DP.05
 * 41) Melkovite (betpakdalite: IMA1968-033) 8.DM.15
 * 42) Melliniite (phosphide: IMA2005-027) 1.BD.20  [no] (IUPAC: tetra(nickel,iron) phosphide)
 * 43) Mellite (Y: 1793) 10.AC.05   (IUPAC: aluminium benzene hexacarboxylate hexadecahydrate)
 * 44) Mellizinkalite (IMA2014-010) 3.0 [no] [no] (IUPAC: tripotassium dizinc heptachloride)
 * 45) Melonite (Y: 1868) 2.EA.20   (IUPAC: nickel ditelluride)
 * 46) Mélonjosephite (IMA1973-012) 8.BG.10   (IUPAC: calcium iron(II) iron(III) hydro diphosphate)
 * 47) Menchettiite (lillianite: IMA2011-009) 2.0 [no]  (Pb5Mn3Ag2Sb6As4S24)
 * 48) Mendeleevite 9.??.
 * 49) Mendeleevite-(Ce) (IMA2009-092) 9. [no]
 * 50) Mendeleevite-(Nd) (IMA2015-031) 9. [no]
 * 51) Mendigite (wollastonite: IMA2014-007) 9. [no] [no]
 * 52) Mendipite (Y: 1824) 3.DC.70   (IUPAC: trilead dioxo dichloride)
 * 53) Mendozavilite (betpakdalite) 7.GB.
 * 54) Mendozavilite-KCa (IMA2011-088) 7.GB. [no] [no]
 * 55) Mendozavilite-NaCu (IMA2011-039) 7.GB. [no] [no]
 * 56) Mendozavilite-NaFe (IMA2010-E, IMA1982-009) 7.GB.45
 * 57) Mendozite (Y: 1868) 7.CC.15   (IUPAC: sodium aluminium disulfate undecahydrate)
 * 58) Meneghinite (meneghinite: 1852) 2.HB.05b   (Pb13CuSb7S24)
 * 59) Menezesite (polyoxometalate: IMA2005-023) 4.FN.05  [no]
 * 60) Mengeite (IMA2018-035) 8.0 [no] [no]
 * 61) Mengxianminite (IMA2015-070) 4.0 [no] [no]
 * 62) Meniaylovite (IMA2002-050) 3.CG.10  [no] (IUPAC: tetracalcium fluoro[sulfate hexafluorosilicate (hexafluoroaluminate)] dodecahydrate)
 * 63) Menshikovite (IMA1993-057) 2.AC.20c   (IUPAC: tripalladium dinickel triarsenide)
 * 64) Menzerite-(Y) (garnet, garnet: IMA2009-050) 9.AD. [no]  (IUPAC: diyttrium calcium dimagnesium tri(tetraoxysilicate))
 * 65) Mercallite (Y: 1935) 7.AD.10   (IUPAC: potassium hydroxosulfate)
 * 66) Mercury (liquid as mineraloid)
 * 67) Mereheadite (IMA1996-045) 3.DC.45
 * 68) Mereiterite (IMA1993-045) 7.CC.55   (IUPAC: dipotassium iron(II) disulfate tetrahydrate)
 * 69) Merelaniite (cylindrite: IMA2016-042) 2.0 [no] [no]
 * 70) Merenskyite (melonite: IMA1965-016) 2.EA.20   (IUPAC: palladium ditelluride)
 * 71) Meridianiite (IMA2007-011) 7.CB.90  [no] (IUPAC: magnesium sulfate undecahydrate)
 * 72) Merlinoite (zeolitic tectosilicate: IMA1976-046) 9.GC.15
 * 73) Merrihueite (milarite: IMA1965-020) 9.CM.05
 * 74) Merrillite (whitlockite: IMA1976-K, 1917 Rd) 8.AC.45  [no] (IUPAC: nonacalcium sodium magnesium heptaphosphate)
 * 75) Mertieite 2.AC.1?
 * 76) Mertieite-I (IMA1971-016 Rd) 2.AC.15b
 * 77) Mertieite-II (stillwaterite: 1973) 2.AC.10b
 * 78) Merwinite (Y: 1921) 9.AD.15   (IUPAC: tricalcium magnesium di(tetraoxysilicate))
 * 79) Mesaite (IMA2015-069) 4.0 [no] [no]
 * 80) Mesolite (zeolitic tectosilicate: IMA1997 s.p., 1813) 9.GA.05
 * 81) Messelite (fairfieldite: 1890) 8.CG.05   (IUPAC: dicalcium iron(II) diphosphate dihydrate)
 * 82) Meta-aluminite (aluminite: IMA1967-013) 7.DC.05   (IUPAC: dialuminium tetrahydro sulfate pentahydrate)
 * 83) Meta-alunogenQ (Y: 1942) 7.CB.45 [no]
 * 84) Meta-ankoleite (natroautunite: IMA1963-013) 8.EB.15   (IUPAC: potassium uranyl phosphate trihydrate)
 * 85) Meta-autunite (meta-autunite: 1904) 8.EB.10   (IUPAC: calcium diuranyl diphosphate hexahydrate)
 * 86) Metaborite (IMA1967 s.p., 1964) 6.GD.10
 * 87) Metacalciouranoite (wolsendorfite: IMA1971-054) 4.GB.20
 * 88) Metacinnabar (sphalerite: 1870) 2.CB.05a   (IUPAC: mercury sulfide)
 * 89) Metadelrioite (IMA1967-006) 4.HG.40   (IUPAC: strontium calcium dihydro divanadate)
 * 90) Metahaiweeite (IMA1962 s.p., 1959) 9.AK.25  [no]
 * 91) Metaheinrichite (8.EB.: 1958) 8.EB.10   (IUPAC: barium diuranyl diarsenate octahydrate)
 * 92) Metahewettite (hewettite: 1914) 4.HE.15   (IUPAC: calcium hexavanadium(V) hexadecaoxide trihydrate)
 * 93) Metahohmannite (amarantite: 1938) 7.DB.30   (IUPAC: diiron(III) oxo disulfate tetrahydrate)
 * 94) Metakahlerite (8.EB.: 1958) 8.EB.10   (IUPAC: iron(II) diuranyl diarsenate octahydrate)
 * 95) Metakirchheimerite (8.EB.: 1958) 8.EB.10   (IUPAC: cobalt diuranyl diarsenate octahydrate)
 * 96) Metaköttigite (symplesite: IMA1979-077) 8.CE.85
 * 97) Metalodèvite (IMA1972-014) 8.ED.10   (IUPAC: zinc diuranyl diarsenate decahydrate)
 * 98) Metamunirite (IMA1990-044) 4.HD.20   (IUPAC: sodium vanadate(V))
 * 99) Metanatroautunite (IMA1987-C, 1957) 8.0   (IUPAC: sodium uranyl phosphate trihydrate)
 * 100) Metanováčekite (8.EB.: IMA2007 s.p., 1964) 8.EB.10   (IUPAC: magnesium diuranyl diarsenate octahydrate)
 * 101) Metarauchite (autunite: IMA2008-050) 8.EB.05   (IUPAC: nickel diuranyl diarsenate octahydrate)
 * 102) Metarossite (Y: 1927) 4.HD.10   (IUPAC: calcium divanadium(V) hexaoxide dihydrate)
 * 103) Metasaléeite (8.EB.: 1950) 8.EB.10 [no] [no] (IUPAC: magnesium diuranyl diphosphate octahydrate)
 * 104) Metaschoderite (IMA1962 s.p.) 8.CE.70   (IUPAC: aluminium phosphate trihydrate)
 * 105) Metaschoepite (Y: 1960) 4.GA.05   (IUPAC: octauranyl dioxo dodecahydroxide decahydrate)
 * 106) Metasideronatrite (Y: 1938) 7.DF.20   (IUPAC: tetrasodium diiron dihydro tetrasulfate dihydrate)
 * 107) Metastibnite (stibnite: 1888) 2.DB.05   (IUPAC: diantimony trisulfide)
 * 108) Metastudtite (IMA1981-055) 4.GA.15   (IUPAC: uranyl dioxide dihydrate)
 * 109) Metaswitzerite (IMA1981-027a, 1967 Rd) 8.CE.25   (IUPAC: trimanganese(II) diphosphate tetrahydrate)
 * 110) Metatamboite (tellurite: IMA2016-060) 4.0 [no] [no]
 * 111) Metathénardite (IMA2015-102) 7.AC.30 [no] [no] (IUPAC: disodium sulfate)
 * 112) Metatorbernite (8.EB.: 1916) 8.EB.10   (IUPAC: copper diuranyl diphosphate octahydrate)
 * 113) Metatyuyamunite (fritzscheite: 1954) 4.HB.25   (IUPAC: calcium diuranyl divanadate trihydrate)
 * 114) MetauramphiteQ (8.EB.: 1957) 8.EB. [no] [no]
 * 115) Metauranocircite I (8.EB.: IMA2007 s.p., 1904) 8.EB.10   (IUPAC: barium diuranyl diphosphate octahydrate)
 * 116) Metauranopilite (IMA2007 s.p., 1951) 7.EA.05   (IUPAC: hexauranyl decahydro sulfate pentahydrate)
 * 117) Metauranospinite (8.EB.: IMA2007 s.p., 1958) 8.EB.10   (IUPAC: calcium diuranyl diarsenate octahydrate)
 * 118) Metauroxite (hydrous uranyl oxalate: IMA2019-030) 10.0 [no] [no]
 * 119) Metavandendriesscheite (Y: 1960) 4.GB.40
 * 120) Metavanmeersscheite (IMA1981-010) 8.EC.20   (IUPAC: uranium(VI) triuranyl hexahydro diphosphate dihydrate)
 * 121) Metavanuralite (IMA1970-003) 4.HB.20   (IUPAC: aluminium diuranyl hydro divanadate octahydrate)
 * 122) Metavariscite (phosphosiderite: IMA1967 s.p., 1925) 8.CD.05   (IUPAC: aluminium phosphate dihydrate)
 * 123) Metavauxite (Y: 1927) 8.DC.25   (IUPAC: iron(II) dialuminium dihydro diphosphate octahydrate)
 * 124) Metavivianite (symplesite: IMA1973-049) 8.DC.25   (IUPAC: iron(II) diiron(III) dihydro diphosphate hexahydrate)
 * 125) Metavoltine (metavoltine: 1883) 7.DF.35
 * 126) Metazellerite (IMA1965-032) 5.EC.10   (IUPAC: copper uranyl dicarbonate trihydrate)
 * 127) Metazeunerite (8.EB.: 1937) 8.EB.10   (IUPAC: copper diuranyl diarsenate octahydrate)
 * 128) Meurigite (phosphofibrite) 8.DJ.20
 * 129) Meurigite-K (IMA1995-022) 8.DJ.20
 * 130) Meurigite-Na (IMA2007-024) 8.DJ.20  [no]
 * 131) Meyerhofferite (Y: 1914) 6.CA.30   (IUPAC: calcium pentahydro trioxo triborate hydrate)
 * 132) Meymacite (IMA1965-001a Rd) 4.FJ.05   (IUPAC: tungsten trioxide dihydrate)
 * 133) Meyrowitzite (IMA2018-039) 5.0 [no] [no] (IUPAC: calcium uranyl dicarbonate pentahydrate)

Mg – Mu
(IUPAC: tripotassium iron(III) trioxalate trihydrate) (IUPAC: dilead(II) lead(IV) tetraoxide) (Ba[Be2P2O8]) (IUPAC: calcium zinc dicarbonate) (IUPAC: potassium dialuminium fluoro diphosphate tetrahydrate) (IUPAC: sodium sulfate decahydrate) (IUPAC: tricopper manganese hexahydroxide dichloride) (IUPAC: sodium antimony(V) hexahydroxide) (IUPAC: diberyllium hydro phosphate tetrahydrate) (IUPAC: disodium magnesium fluoro phosphate) (IUPAC: trialuminium uranyl dihydro triphosphate tridecahydrate) (IUPAC: dicalcium tribarium chloro triarsenate) (IUPAC: nickel sulfate heptahydrate)
 * 1) Mgriite (IMA1980-100) 2.LA.45
 * 2) Mianningite (crichtonite: IMA2014-072) 4.0 [no] [no]
 * 3) Miargyrite (Y: 1829) 2.HA.10   (IUPAC: silver antimonide disulfide)
 * 4) Miassite (IMA1997-029) 2.BC.05  [no] (IUPAC: heptadecarhodium pentadecasulfide)
 * 5) Michalskiite (IMA2019-062) 8.0 [no] [no]
 * 6) Micheelsenite (ettringite: IMA1999-033) 8.DO.30
 * 7) Michenerite (ullmannite: IMA1971-006a Rd) 2.EB.25   (IUPAC: palladium bismuthide telluride)
 * 8) Microcline (feldspar: 1830) 9.FA.30
 * 9) ( microlite group (tantalum dominant), pyrochlore supergroup )
 * 10) Microsommite (cancrinite: 1872) 9.FB.05
 * 11) Middendorfite (IMA2005-028) 9.EJ.10
 * 12) Middlebackite (IMA2015-115) 10.0 [no] [no]
 * 13) Mieite-(Y) (IMA2014-020) 9.AG.25 [no]
 * 14) Miersite (sphalerite: 1898) 3.AA.05
 * 15) Miessiite (isomertieite: IMA2006-013) 2.AC.15a  [no] (IUPAC: undecapalladium ditelluride disulfide)
 * 16) Miguelromeroite (hureaulite: IMA2008-066) 8.CB.10 [no] [no] (IUPAC: pentamanganese diarsenate dihydroxoarsenate tetrahydrate)
 * 17) Miharaite (IMA1976-012) 2.LB.05   (IUPAC: lead tetracopper iron bismuthide hexasulfide)
 * 18) Mikasaite (millosevichite: IMA1992-015) 7.AB.05   (IUPAC: diiron(III) trisulfate)
 * 19) Mikecoxite (IMA2021-060) [no] [no]
 * 20) Mikehowardite (IMA2020-068) 4.0 [no] [no]
 * 21) Milanriederite (vesuvianite: IMA2018-041) 9.B [no] [no]
 * 22) Milarite (milarite: 1870) 9.CM.05
 * 23) Milkovoite (IMA2021-005) [no] [no] (IUPAC: tetracopper oxophosphate arsenate)
 * 24) Millerite (millerite: 1845) 2.CC.20   (IUPAC: nickel sulfide)
 * 25) Millisite (wardite: 1930) 8.DL.10   (IUPAC: sodium calcium hexaluminium nonahydro tetraphosphate trihydrate)
 * 26) Millosevichite (millosevichite: 1913) 7.AB.05   (IUPAC: dialuminium trisulfate)
 * 27) Millsite (IMA2015-086) 4.0 [no] [no] (IUPAC: copper tellurite dihydrate)
 * 28) Milotaite (ullmannite: IMA2003-056) 2.EB.25   (IUPAC: lead antimony selenide)
 * 29) Mimetite (apatite: 1832) 8.BN.05   (IUPAC: pentalead chloro triarsenate)
 * 30) Minakawaite (modderite: IMA2019-024) 2.0 [no] [no] (IUPAC: rhodium antimonide)
 * 31) Minasgeraisite-(Y) (gadolinite: IMA1983-090) 9.AJ.20
 * 32) Minasragrite (minasragrite: 1915) 7.DB.20   (IUPAC: vanadium(IV) oxo sulfate pentahydrate)
 * 33) Mineevite-(Y) (IMA1991-048) 5.BF.25
 * 34) Minehillite (gyrolite: IMA1983-001) 9.EE.75
 * 35) Minguzzite (oxalate: 1955) 10.AB.25
 * 1) Minium (Y: 1806) 4.BD.05
 * 1) Minjiangite (dmisteinbergite: IMA2013-021) 8.0 [no] [no]
 * 1) Minnesotaite (talc: 1944) 9.EC.05
 * 2) Minohlite (IMA2012-035) 7.0 [no] [no]
 * 3) Minrecordite (dolomite: IMA1980-096) 5.AB.10
 * 1) Minyulite (Y: 1932) 8.DH.05
 * 1) Mirabilite (Y: 1845) 7.CD.10
 * 1) Mirnyite (crichtonite: IMA2018-144a) [no] [no]
 * 2) Misakiite (atacamite: IMA2013-131) 4.0 [no] [no]
 * 1) Misenite (Y: 1849) 7.AD.15   (IUPAC: octapotassium sulfate hexahydroxosulfate)
 * 2) Miserite (Y: 1950) 9.DG.85
 * 3) Mitridatite (arseniosiderite: 1914) 8.DH.30   (IUPAC: dicalcium triiron(III) dioxo triphosphate trihydrate)
 * 4) Mitrofanovite (IMA2017-112) 2.0 [no] [no]
 * 5) Mitryaevaite (IMA1991-035) 8.DB.25
 * 6) Mitscherlichite (Y: 1925) 3.CJ.15   (IUPAC: dipotassium copper tetrachloride dihydrate)
 * 7) Mixite (mixite: 1880) 8.DL.15   (IUPAC: hexacopper(II) bismuth hexahydro triarsenate trihydrate)
 * 8) Miyahisaite (apatite: IMA2011-043) 8.BN.05 [no]
 * 9) Moabite (IMA2020-092) [no] [no]
 * 10) Moctezumite (uranyl tellurite: IMA1965-004) 4.JK.65   (IUPAC: lead uranyl ditellurite(IV))
 * 11) Modderite (modderite: 1923) 2.CC.15   (IUPAC: cobalt arsenide)
 * 12) Moëloite (IMA1998-045) 2.HC.25  [no] (IUPAC: hexalead hexaantimonide heptadecasulfide)
 * 13) Mogánite (IMA1999-035) 4.DA.20  [no] (IUPAC: silicon oxide (n)hydrate)
 * 14) Mogovidite (eudialyte: IMA2004-040) 9.CO.10
 * 15) Mohite (IMA1981-015) 2.CB.15b   (IUPAC: dicopper trisulfa stannide)
 * 16) Möhnite (aphthitalite: IMA2014-101) 7.0 [no] [no] (IUPAC: ammonium dipotassium sodium disulfate)
 * 17) Mohrite (picromerite: IMA1964-023) 7.CC.60   (IUPAC: diammonium iron(II) sulfate hexahydrate)
 * 18) Moissanite (carbide: 1905) 1.DA.   (IUPAC: silicon carbide, 'carborundum')
 * 19) Mojaveite (tellurium oxysalt: IMA2013-120) 7.A?. [no] [no] (Cu6[Te6+O4(OH)2](OH)7Cl)
 * 20) Molinelloite (IMA2016-055) 8.0 [no] [no]
 * 21) Moluranite (Y: 1957) 7.HA.15   (IUPAC: tetrahydrogen uranium(IV) triuranyl heptamolybdate octadecahydrate)
 * 22) Molybdenite (molybdenite: 1796) 2.EA.30   (IUPAC: molybdenum sulfide)
 * 23) Molybdite (IMA1963 s.p., 1907 Rd) 4.E   (IUPAC: molybdenum trioxide)
 * 24) Molybdofornacite (fornacite: IMA1982-062) 7.FC.10   (IUPAC: copper dilead hydro molybdate arsenate)
 * 25) Molybdomenite (IMA2007 s.p., 1882) 4.JF.05   (IUPAC: lead selenite)
 * 26) Molybdophyllite (molybdophyllite: 1901) 9.HH.25
 * 27) Molysite (Y: 1868) 3.AC.10   (IUPAC: iron(III) trichloride)
 * 28) Momoiite (garnet, garnet: IMA2009-026) 9.AD.25 [no]
 * 29) Monazite 8.AD.50 (IUPAC: REE phosphate)
 * 30) Monazite-(Ce) (IMA1987 s.p., 1829) 8.AD.50
 * 31) Monazite-(La) (IMA1966 s.p.) 8.AD.50
 * 32) Monazite-(Nd) (IMA1986-052) 8.AD.50
 * 33) Monazite-(Sm) (IMA2001-001) 8.AD.50  [no]
 * 34) Moncheite (melonite: IMA1967 s.p., 1963) 2.EA.20
 * 35) Monchetundraite (IMA2019-020) 2.0 [no] [no] (IUPAC: dipalladium nickel ditelluride)
 * 36) Monetite (Y: 1882) 8.AD.10   (IUPAC: calcium hydroxophosphate)
 * 37) Mongolite (IMA1983-027) 9.HF.05
 * 38) MonimoliteQ (pyrochlore: IMA2013 s.p., 1865) 4.DH.20   Note: possibly  oxyplumboroméite (Hålenius & Bosi, 2013).
 * 39) Monipite (barringerite: IMA2007-033) 1.BD.10   (IUPAC: molybdenum nickel phosphide)
 * 40) Monohydrocalcite (Y: 1964) 5.CB.20   (IUPAC: calcium carbonate monohydrate)
 * 41) MontaniteQ (tellurium oxysalt: 1868) 7.CD.60   (IUPAC: dibismuth(III) tellurium(VI) hexaoxide dihydrate)
 * 42) Montbrayite (IMA2017-F, 1946) 2.DB.20   ((Au,Ag,Sb,Bi,Pb)23(Te,Sb,Bi,Pb)38)
 * 43) Montdorite (mica: IMA1998 s.p., 1979 Rd) 9.EC.15  [no]
 * 44) Montebrasite (titanite, amblygonite: 1872) 8.BB.05   (IUPAC: lithium aluminium hydro phosphate)
 * 45) Monteneveite (garnet: IMA2018-060) 4.0 [no] [no]
 * 46) Monteponite (rocksalt, periclase: 1901) 4.AB.25   (IUPAC: cadmium(II) oxide)
 * 47) Monteregianite-(Y) (rhodesite: IMA1972-026) 9.EB.15
 * 48) Montesommaite (zeolitic tectosilicate: IMA1988-038) 9.GB.30
 * 49) Montetrisaite (IMA2007-009) 7.DD.85   (IUPAC: hexacopper decahydro sulfate dihydrate)
 * 50) Montgomeryite (calcioferrite: 1940) 8.DH.25   (IUPAC: tetracalcium magnesium tetraluminium tetrahydro hexaphosphate dodecahydrate)
 * 51) Monticellite (olivine: 1831) 9.AC.10   (IUPAC: calcium magnesium (tetraoxy silicate))
 * 52) Montmorillonite (montmorillonite, smectite: 1847) 9.EC.40
 * 53) Montroseite ("O(OH)" group: 1953) 4.FD.10   ((V(3+),Fe(2+),V(4+))O(OH))
 * 54) Montroyalite (IMA1985-001) 5.DB.10   (IUPAC: tetrastrontium octaaluminium tricarbonate hexacosahydroxide decahydrate)
 * 55) Montroydite (Y: 1903) 4.AC.15   (IUPAC: mercury oxide)
 * 56) Mooihoekite (chalcopyrite: IMA1971-019) 2.CB.10b   (IUPAC: nonacopper nonairon hexadecasulfide)
 * 57) Moolooite (oxalate: IMA1980-082) 10.AB.15
 * 58) Mooreite (Y: 1929) 7.DD.45   (IUPAC: pentadecamagnesium hexacosahydro disulfate octahydrate)
 * 59) Moorhouseite (hexahydrite: IMA1963-008) 7.CB.25   (IUPAC: cobalt sulfate hexahydrate)
 * 60) Mopungite (perovskite, stottite: IMA1982-020) 4.FC.15
 * 1) Moraesite (Y: 1953) 8.DA.05
 * 1) Moraskoite (moraskoite: IMA2013-084) 8.0 [no] [no]
 * 1) Mordenite (zeolitic tectosilicate: IMA1997 s.p., 1864) 9.GD.35
 * 2) Moreauite (IMA1984-010) 8.ED.05
 * 1) Morelandite (apatite: IMA1977-035) 8.BN.05
 * 1) Morenosite (epsomite: 1851) 7.CB.40
 * 1) Morimotoite (garnet, garnet: IMA1992-017) 9.AD.25  [no]
 * 2) Morinite (IMA1967 s.p., 1891) 8.DM.05   (IUPAC: sodium dicalcium dialuminium hydroxo tetrafluoro diphosphate dihydrate)
 * 3) Morozeviczite (IMA1974-036) 2.CB.35a
 * 4) Morrisonite (polyoxometalate: IMA2014-088) 4.0 [no] [no]
 * 5) Mosandrite-(Ce) (seidozerite, rinkite: IMA2016-A, IMA2009-C, IMA2007 s.p., 1842 Rd) 9.BE.20  [no]
 * 6) Moschelite (IMA1987-038) 3.AA.30   (IUPAC: dimercury diiodide)
 * 7) Moschellandsbergite (amalgam: 1938) 1.AD.15d   (IUPAC: disilver trimercury amalgam)
 * 8) Mosesite (Y: 1910) 3.DD.30
 * 9) Moskvinite-(Y) (IMA2002-031) 9.CD.05   (IUPAC: disodium potassium yttrium pentadecaoxy hexasilicate)
 * 10) Mössbauerite (hydrotalcite: IMA2012-049) 4.0 [no] [no] (IUPAC: hexairon(III) tetraoxo octahydroxide carbonate trihydrate)
 * 11) Mottanaite-(Ce) (hellandite: IMA2018-D, IMA2001-020) 9.DK.20  [no]
 * 12) Mottramite (decloizite: 1876) 8.BH.40   (IUPAC: lead copper hydro vanadate)
 * 13) MotukoreaiteQ (hydrotalcite, woodwardite: IMA1976-033) 7.DD.35
 * 14) Mounanaite (tsumcorite: IMA1968-031) 8.CG.15   (IUPAC: lead diiron(III) dihydro divanadate)
 * 15) Mountainite (Y: 1957) 9.GG.10
 * 16) Mountkeithite (hydrotalcite, woodwardite: IMA1980-038) 7.DD.35
 * 17) Mourite (IMA1967 s.p., 1962) 4.FL.80   (IUPAC: uranyl pentamolybdenum(VI) hexadecaoxide pentahydrate)
 * 18) Moxuanxueite (woehlerite: IMA2019-100) 9.BE. [no] [no]
 * 19) Moydite-(Y) (IMA1985-025) 6.AC.45   (IUPAC: yttrium tetrahydro borate carbonate)
 * 20) Mozartite (adelite: IMA1991-016) 9.AG.60   (IUPAC: calcium manganese(III) tetraoxysilicate hydroxyl)
 * 21) Mozgovaite (IMA1998-060) 2.JA.05h
 * 22) Mpororoite (anthoinite: IMA1970-037) 7.GB.35   (IUPAC: dialuminium oxo ditungstate hexahydrate)
 * 23) Mrázekite (IMA1990-045) 8.DJ.40
 * 24) Mroseite (IMA1974-032) 4.JL.15   (IUPAC: calcium tellurium(IV) dioxocarbonate)
 * 25) Mückeite (IMA1988-018) 2.GA.25   (IUPAC: copper nickel bismuth trisulfide)
 * 26) Muirite (IMA1964-013) 9.CN.05
 * 27) Mukhinite (epidote, clinozoisite: IMA1968-035) 9.BG.05a
 * 28) Müllerite (tellurium oxysalt: IMA2019-060) 8.0 [no] [no]
 * 29) Mullite (Y: 1924) 9.AF.20
 * 30) Mummeite (pavonite: IMA1986-025) 2.JA.05f
 * 31) Munakataite (linarite: IMA2007-012) 7.BC.65   (IUPAC: dilead dicopper tetrahydro selenite sulfate)
 * 32) Mundite (IMA1980-075) 8.EC.30   (IUPAC: aluminium triuranyl trihydro diphosphate (5.5)hydrate)
 * 33) Mundrabillaite (IMA1978-058) 8.CJ.10   (IUPAC: diammonium calcium dihydroxophosphate monohydrate)
 * 34) Munirite (IMA1982-038) 4.HD.15   (IUPAC: sodium vanadium(V) trioxide (1.9)hydrate)
 * 35) Murakamiite (pectolite: IMA2016-066) 9.D?. [no] [no]
 * 36) Murashkoite (phosphide: IMA2012-071) 1.0 [no] [no] (IUPAC: iron phosphide)
 * 37) Murataite-(Y) (IMA1972-007) 4.DF.15
 * 38) Murchisite (IMA2010-003) 2.0 [no] [no] (IUPAC: pentachromium hexasulfide)
 * 39) Murdochite (murdochite: 1955) 3.DB.45   (IUPAC: dodecacopper dilead pentadecaoxo dichloride)
 * 40) Murmanite (seidozerite, murmanite: 1930) 9.BE.27   (IUPAC: disodium dititanium (heptaoxy disilicate) dioxy dihydrate)
 * 41) Murphyite (raspite: IMA2021-107) 7.AD. [no] [no]
 * 42) Murunskite (IMA1980-064) 2.BD.30
 * 43) Muscovite (mica: IMA1998 s.p., 1794) 9.EC.15   (IUPAC: potassium dialuminium (aluminotrisilicate) decaoxydihydroxyl)
 * 44) Museumite (IMA2003-039) 2.HB.20c
 * 45) Mushistonite (perovskite, schoenfliesite: IMA1982-068) 4.FC.10   (IUPAC: copper(II) tin(IV) hexahydroxide)
 * 46) MuskoxiteQ (hydrotalcite: IMA1967-043) 4.FL.05   (IUPAC: heptamagnesium tetrairon(III) hexacosahydroxide monohydrate)
 * 47) Muthmannite (Y: 1911) 2.CB.85   (IUPAC: gold silver ditelluride)
 * 48) Mutinaite (zeolitic tectosilicate: IMA1996-025) 9.GF.35  [no]
 * 49) Mutnovskite (IMA2004-032) 2.GC.50  [no] (IUPAC: dilead iodo arsenide trisulfide)