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Oxide

[Ax][Oy]

X/Y=2.00
[A2][O] [Cubic Pn3m]
Cuprite
[A2][O] [Hexagonal ???]
Ice
X/Y=1.00
[A][O] [Cubic Fm3m] Periclase group
Manganosite
Periclase
[A][O] [Hexagonal P6mc]
Zincite
[A][O] [Monoclinic C2/c]
Tenorite
[A(+)][B(3+)][O2] [Trigonal R(-3)m]
Delafossite
[A(2+)][B(2+)][O2] [Monoclinic A2/m]
Crednerite
X/Y=0.85
[A(2+)2][B(4+)][O4] [Tetragonal P42mbc]
Minium
X/Y=0.75
[A][B2][O4] [Cubic Fd3m] Spinel group
Chromite
Gahnite
Galaxite
Hercynite
Jacobsite
Magnesiochromite
Magnesioferrite
Magnetite
Spinel
Ulvöspinel, Ulvospinel
Vuorelainenite
[A][B2][O4] [Cubic P432]
Titanomaghemite
[A][B2][O4] [Tetragonal I4/amd]
Hausmannite
Hetaerolite
[A][B2][O4] [Tetragonal P4/nnm]
Iwakiite
[A][B2][O4] [Tetragonal P4/ncc]
Kusachiite
[A][B2][O4] [Orthorhombic Pmab]
Marokite
[A][B2][O4] [Orthorhombic Pmnb]
Chrysoberyl
X/Y=0.70
[A2][B5][O10] [Monoclinic C2/m]
Romanèchite, Romanechite
X/Y=0.67
[A2][O3] [Cubic Fd3m]
Arsenolite
Sénarmontite, Senarmontite
[A2][O3] [Cubic P23]
Maghemite
[A2][O3] [Cubic Ia3]
Bixbyite
[A2][O3] [Trigonal R(-3)c] Hematite group
Corundum
Hematite
[A2][O3] [Orthorhombic Pccn]
Valentinite
[A2][O3] [Monoclinic P2/c,P2/n]
Bismite
Claudetite
X/Y=0.65
[A12][B][O12] [Cubic I23]
Sillénite, Sillenite
X/Y=0.57
[A2][B2][O7] [Cubic ???]
Kobeite-(Y)
[A][B][C2][O7] [Amorphous]
Zirconolite
X/Y=0.563
[A][B8][O16] [Monoclinic I2/m] Cryptomelane group
Coronadite
Cryptomelane
Hollandite
Strontiomelane
X/Y=0.556
[A2][B3][O9] [Trigonal P32]
Pseudorutile
X/Y=0.50
[A][O2] [Cubic Fm3m]
Uraninite
Thorianite
[A][O2] [Tetragonal I4/amd]
Anatase
[A][O2] [Tetragonal P4/mmm,P4/mnm] Rutile group
Cassiterite
Pyrolusite
Rutile
Stishovite
[A][O2] [Tetragonal P422]
Cristobalite
Paratellurite
[A][O2] [Hexagonal ???]
β-Quartz
Nsutite
[A][O2] [Trigonal P321]
Quartz
[A][O2] [Orthorhombic Pcab,Pbnm,Pbca]
Brookite
Ramsdellite
Tellurite
[A][O2] [Monoclinic P2/c]
Baddeleyite
[A][O2] [Monoclinic P21/n]
Tugarinovite
[A][O2] [Monoclinic C2/c]
Coesite
[A][O2] [Monoclinic I2/a]
Mogánite, Moganite
[A][O2] [Triclinic F1]
Tridymite
[A4][O8] [Orthorhombic ???]
Ixiolite
X/Y=0.40
[A2][O5] [Orthorhombic Bbmm]
Pseudobrookite
X/Y=0.33
[A][O3] [Orthorhombic Pbnm]
Molybdite
Hydrate-Oxide
[A][O2],nH2O [Tetragonal]
Vernadite
[A][O2],nH2O [Amorphous]
Opal
[A][O3],H2O [Orthorhombic Pmnb,Pbna]
Tungstite
Metaschoepite
[A][O3],2H2O [Monoclinic P2/m]
Hydrotungstite
[A2][O6],H2O [Cubic Fd3m]
Hydrokenoelsmoreite
[A][B7][O14],3H2O [Monoclinic C2/m]
Birnessite
[A(2+)][B(4+)3][O7],3H2O [Trigonal R(-3)]
Aurorite
Chalcophanite
[A2][B4][O8],H2O [Tetragonal I4/amd]
Hydrohetaerolite
[A][B4][O9],3H2O [Hexagonal ???]
Takanelite
Ranciéite, Rancieite
[A][B5][O10],3.5H2O [Tetragonal ???]
Woodruffite
[A][B6][O12],3H2O [Monoclinic P2/m]
Todorokite
[A][B8][O16],nH2O [Tetragonal I4/m]
Manjiroite
[A4][B14][O27],21H2O [???]
Buserite
Sulfide-Oxide, Oxysulfide
Kermesite
Sulfosalt-Oxide
Cetineite NaK5Sb14S6O18(H2O)6
Ottensite Na3(Sb2O3)3(SbS3),3H2O
Rouxelite Cu2HgPb22Sb28S64(O, S)2
Sarabauite Sb4S6?CaSb6O10
Scainiite Pb14Sb30S54O5
Hydroxide-Oxide
[A(3+)][O|OH] [Hexagonal ???] Heterogenite group
Feitknechtite
Feroxyhyte
[A(3+)][O|OH] [Hexagonal,Trigonal P6/mmc,R(-3)m] Heterogenite group
Heterogenite
[A(3+)][O|OH] [Orthorhombic Pbnm] Diaspore group
Diaspore
Goethite
Groutite
Montroseite
[A(3+)][O|OH] [Orthorhombic Amam] Böhmite(Bohmite) group
Böhmite, Bohmite
Lepidocrocite
[A(3+)][O|OH] [Monoclinic I2/m]
Akaganeite
[A(3+)][O|OH] [Monoclinic B21/d]
Manganite
[A(2+)][B(3+)][O2|OH] [Monoclinic P2]
Quenselite
[A2][B][O5|OH] [Tetragonal P4/mnm]
Varlamoffite
[A][B][O2|(OH)2] [Trigonal R(-3)m]
Lithiophorite
[A5][O3|(OH)9] [Trigonal P(-3)1c]
Ferrihydrite
[A(2+)][B(4+)3][O6|(OH)2] [Trigonal ???]
Cesàrolite
Hydrate-Hydroxide-Oxide
[(UO2)8][(OH)12|O2],12H2O [Orthorhombic P2ca]
Schoepite
[A(2+)][(UO2)6][(OH)6|O4],8H2O [Orthorhombic Pna21]
Becquerelite
Sulfosalt-Chloride-Oxide
Pellouxite (Cu,Ag)2Pb21Sb23S55ClO
Pillaite Pb9Sb10S23ClO0.5
Hydroxide-Oxide-Carbonate
[A(2+)5][(OH)2|O|(CO3)3] [Trigonal P(-3)2/c]
Plumbonacrite
Oxide-Nesoborate
[A(2+)2][C(3+)][O2|BO3] [Orthorhombic Pbam] Ludwigite group
Ludwigite
Vonsenite
[A(2+)2][C(3+)][O2|BO3] [Monoclinic P2/m]
Hulsite
[A(2+)3][C][O|BO3]2 [Orthorhombic Pnam]
Warwickite
Hydrate-Oxide-Sulfate
[A(+)6][O2|SO4],H2O [Triclinic P(-1)]
Coquandite
[A(+)2][B(+)6][C(2+)][D(3+)6][O2|(SO4)12],18H2O [Trigonal P(-3)]
Metavoltine
Hydroxide-Oxide-Sulfate
[A2][O|(OH)2|SO4] [Monoclinic P2/c]
Cannonite
Hydrate-Hydroxide-Oxide-Sulfate
[A(2+)4][B(2+)][(OH)4|O2|SO4],H2O [Monoclinic P2/c]
Elyite
[A(3+)16][(OH)9.6|O16|(SO4)3.2],10H2O [Tetragonal P4/m]
Schwertmannite
[A(3+)][B(3+)4][OH|O|(SO4)6],20H2O [Triclinic P(-1)] Copiapite group
Ferricopiapite
Hydrate-Hydroxide-Oxide-Chromate
[A(3+)24][(OH)6|O25|(CrO4)8],3H2O [Monoclinic C2/m]
Dukeite
Hydrate-Oxide-Phosphate
[A(2+)2][B(3+)3][O2|(PO4)3],3H2O [Monoclinic A2/a] Mitridatite group
Mitridatite
Robertsite
[A(+)3][B(+)][C(2+)][D(2+)7][O|PO4]4,8H2O [Orthorhombic Cmcm]
Phosphuranylite
Hydroxide-Oxide-Phosphate
[A(3+)2][OH|O|PO4] [Monoclinic P21/c]
Smrkovecite
[A(3+)3][OH|O|(PO4)2] [Triclinic P1]
Petitjeanite
Hydrate-Hydroxide-Oxide-Phosphate
[A(3+)24][B(3+)][(OH)12|O6|(PO4)17],75H2O [Hexagonal P6/mmm]
Cacoxenite
Hydrate-Oxide-Arsenate
[A(2+)2][B(3+)3][O2|(AsO4)3],3H2O [Monoclinic A2/a]
Arseniosiderite
Hydroxide-Oxide-Arsenate
[A(3+)3][OH|O|(AsO4)2] [Triclinic P(-1)]
Preisingerite
Hydroxide-Oxide-Vanadate
[A(3+)2][OH|VO4] [Monoclinic P21/c]
Hechtsbergite
Oxide-Nesosilicate
[A(6+)][B(4+)][O|SiO4] [Orthorhombic Pnma]
Sillimanite
[A(6+)][B(5+)][O|SiO4] [Orthorhombic Pnnm]
Andalusite
[A(6+)][B(5+)][O|SiO4] [Orthorhombic Pbam]
Mullite
[A][B][O|SiO4] [Monoclinic A2/a]
Malayaite
[A][B][O|SiO4] [Monoclinic P2/a]
Titanite
[A(6+)][B(6+)][O|SiO4] [Triclinic P(-1)]
Kyanite
[A(2+)][B(3+)6][O8|SiO4] [Tetragonal I4/acd]
Abswurmbachite
Braunite
Neltnerite
[A(2+)2][B(2+)][C2][O2|(SiO4)2] [Monoclinic P2/a]
Gadolinite-(Y)
[A(2+)6][B(5+)2][O6|(SiO4)2] [Hexagonal ???]
Franciscanite
[A(2+)6][B(6+)2][O6|(SiO4)2] [Trigonal P3]
Welinite
[A(2+)4][B(3+)9][C(5+)][O16|(SiO4)2] [Monoclinic C2/m]
Långbanite, Langbanite
Hydroxide-Oxide-Nesosilicate
[A(2+)][B(3+)2][(OH)2|O|SiO4] [Monoclinic C2/c]
Chloritoid
Ottrélite, Ottrelite
[A(2+)2][B(3+)9][(OH)2|O6|(SiO4)4] [Monoclinic C2/m]
Staurolite
Magnesiostaurolite
Fluoride-Oxide-Nesosilicate
[A(3+)4][B(4+)][F6|O|(SiO4)2] [Orthorhombic Cmcm]
Mieite-(Y)
Chloride-Oxide-Nesosilicate
[A(2+)6][B4][Cl3|O4|(SiO4)3] [Cubic I(-4)3d] Wadalite group
Wadalite
Oxide-Nesoborate-Nesosilicate
[A(2+)][B(3+)3][O2|BO3|SiO4] [Orthorhombic Pbnm]
Ominelite
[A(3+)7][O3|BO3|(SiO4)3] [Orthorhombic Pcmn]
Dumortierite
Oxide-Sorosilicate
[A(2+)2][B(4+)][O|Si2O7] [Tetragonal P4bm]
Fresnoite
[A(2+)3][B(4+)][O2|Si2O7] [Monoclinic P2/a]
Baghdadite
[A(2+)2][B(2+)2][O2|Si2O7] [Orthorhombic C2221]
Melanotekite
[A(2+)4][B(2+)][C(2+)2][D(3+)2][O8|(Si2O7)2] [Monoclinic C2/m,P2/a,C2/a] Chevkinite group
Chevkinite-(Ce)
Matsubaraite
Perrierite-(Ce)
Rengeite
Hydroxide-Oxide-Sorosilicate
[A(2+)][B(2+)2][C(3+)][O|OH|Si2O7] [Orthorhombic Pbnm,Pmmn]
Ilvaite
Ericssonite-2O
[A(2+)][B(2+)2][C(3+)][O|OH|Si2O7] [Monoclinic P21/b]
Manganilvaite
[A(2+)][B(2+)2][C(3+)][O|(OH)2|Si2O7] [Monoclinic P2/m]
Hejtmanite
[A(2+)2][B(+)4][C2][O2|(OH)2|(Si2O7)2] [Monoclinic C2/m]
Lamprophyllite
[A(2+)3][B(3+)6][OH|O4|Si2O7|Si3O10] [Orthorhombic Cmcm]
Kornerupine
[A(2+)5][B(3+)4][OH|O4|Si2O7|Si3O10] [Orthorhombic Cmcm]
Prismatine
Hydroxide-Chloride-Oxide-Sorosilicate
[A(3+)13][Cl|(OH)18|O4|Si5O16] [Cubic F(-4)3m]
Zunyite
Hydroxide-Oxide-Phosphate-Sorosilicate
[A(2+)2][B(2+)2][C][OH|O|PO4|Si2O7] [Triclinic P(-1)]
Yoshimuraite
Hydroxide-Oxide-Nesosilicate-Sorosilicate
[A(2+)][B(2+)][C(3+)2][D(3+)][O|OH|SiO4|Si2O7] [Orthorhombic Pnmc]
Zoisite
[A(2+)][B(2+)][C(3+)2][D(3+)][O|OH|SiO4|Si2O7] [Monoclinic P2/m] Epidote group
Clinozoisite
Clinozoisite-(Sr)
Epidote
Epidote-(Sr)
Manganipiemontite-(Sr)
Piemontite
Piemontite-(Sr)
[A(2+)][B(3+)][C(3+)][D(3+)][E(3+)][O|OH|SiO4|Si2O7] [Monoclinic P2/m] Allanite group
Allanite-(Ce)
Allanite-(Nd)
Allanite-(Y)
Ferriakasakaite-(La)
Ferriallanite-(Ce)
Ferriandrosite-(La)
Uedaite-(Ce)
Vanadoallanite-(La)
Hydrate-Hydroxide-Oxide-Nesosilicate-Sorosilicate
[A(2+)2][B(3+)][C(3+)2][OH|O|SiO4|Si2O7],H2O [Monoclinic A2/m,C2/m] Pumpellyite group
Pumpellyite-(Al)
Poppiite
Chloride-Oxide-Cyclosilicate (Single ring)
[A(+)15][B(2+)6][C(2+)3][D(4+)][E(4+)][F(4+)3][Cl|O4|(SiO3)2|(Si9O27)2] [Trigonal R(-3)m]
Eudialyte
Hydrate-Hydroxide-Oxide-Cyclosilicate (Single ring)
[A(+)][B(2+)2][C(2+)2][D(2+)][E2][OH|O|Si8O24],H2O [Orthorhombic Ccm2]
Strontio-orthojoaquinite
[A(+)][B(2+)2][C(2+)2][D(2+)][E2][OH|O|Si8O24],H2O [Monoclinic C2/m]
Strontiojoaquinite
Hydroxide-Oxide-Nesoborate-Cyclosilicate (Single ring)
[A(+)][B(2+)3][C(3+)6][O3|OH|(BO3)3|Si6O18] [Trigonal R3m]
Olenite
Oxide-Inosilicate (Single chain)
[A(2+)][B(4+)][O|(SiO3)2] [Orthorhombic Ama2]
Haradaite
Suzukiite
[A(2+)3][B(2+)][C(2+)2][O2|(SiO3)4] [Monoclinic ???]
Taikanite
[A(+)2][B(2+)6][O2|(SiO3)6] [Triclinic P(-1)]
Rhönite, Rhonite
[A(+)2][B(2+)5][C][O2|(SiO3)6] [Triclinic P(-1)]
Aenigmatite
Hydrate-Oxide-Inosilicate (Single chain)
[A(2+)3][B(3+)][O|(SiO3)4],2-3H2O [Monoclinic P2/m]
Ohmilite
Hydroxide-Oxide-Inosilicate (Single chain)
[A21][(OH)20|O3|(SiO3)8] [Monoclinic P2/n] Gageite group
Balangeroite
Gageite
Oxide-Ino-Aluminosilicate (Single chain)
[A(2+)7][B(3+)9][O4|(Al3SiO12)3] [Triclinic P(-1)]
Sapphirine
[A(+)][B(2+)12][O10|(Al,Si)12O34] [Triclinic P1]
Taneyamalite
Oxide-Ino-Aluminosilicate (Doule chain)
[A(+)][B(2+)2][C(2+)3][D(4+)][E(3+)][O2|Al2Si6O22] [Monoclinic C2/m]
Kaersutite
Oxide-Ino-Borosilicate
[A(+)4][B(2+)][C][O2|(BSi5O14)2] [Monoclinic C2/m]
Leucosphenite
Oxide-Antimonate
[A(2+)]2[O|Sb2O6] [Cubic Fd3m] Roméite group, Romeite group
Oxyplumboroméite, Oxyplumboromeite
[A(3+)][O|Sb2O6] [Cubic Fd3m]
Hydroxystibioroméite, Hydroxystibioromeite
Oxide-Titanate
[A][B][O|Ti2O6] [Cubic Fd3m] Betafite group
Oxycalciobetafite
[A][B][O|Ti2O6] [Amorphous]
Zirconolite
Oxide-Tantalate
[A2][O|Ta2O6] [Cubic Fd3m] Microlite group
Oxide-Niobate
[A2][O|Nb2O6] [Cubic Fd3m] Pyrochlore group
Oxycalciopyrochlore
Oxide-Phyllosilicate
[A(+)][B(+)][C(3+)2][O2|(Si2O5)2] [Monoclinic C/2]
Norrishite
Hydroxide-Oxide-Phyllosilicate
[A(3+)2][C(3+)][OH|O3|Si2O5] [Monoclinic Cm] Bismutoferrite group
Bismutoferrite
Chapmanite
Hydroxide-Fluoride-Oxide-Inosilicate
[A(+)2][B(+)][C(2+)7][D(4+)2][F|(OH)4|O2|(SiO3)8] [Triclinic P1]
Astrophyllite
Hydrate-Oxide-Phyllo-Aluminosilicate
[A(3+)2][O3|(SiO2)1.3-2],2.5-3H2O [Amorphous]
Allophane
Organic gas-Oxide
[SiO2],n(C,H,O,N,S) [Tetragonal]
Melanophlogite
[SiO2],n(C,H) [Hexagonal]
Bosoite
[SiO2],n(C,H) [Cubic]
Chibaite