Oxide

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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]: Chromite; Cuprospinel; 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/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; Henrymeyerite; 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
[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+)][(UO2)3][OH|O|(PO4)2],6H2O [Monoclinic P2/c]: Françoisite-(Nd), Francoisite-(Nd)
[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

Hydroxide-Chloride-Oxide-Sorosilicate-Cyclosilicate (Single ring)

[A(2+)4][B(3+)4][(OH)4|Cl2|O2|Si2O3(OH)4|Si4O12] [Tetragonal I4/mmm]: Cerchiaraite-(Mn)

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

Oxide-Inosilicate (Double chain)

[A(+)][B(+)2][C(2+)2][D(3+)3][O2|(Si4O11)2] [Monoclinic C2/m]: Mangano-mangani-ungarettiite

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; Oxyyttrobetafite-(Y)
[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