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

O



 * 1) Oberthürite (IMA2017-072) 2.0 [no] [no]
 * 2) Oberwolfachite (alunite: IMA2021-010) [no] [no]
 * 3) Oboyerite (tellurite-tellurium oxysalt: IMA1979-009) 4.JN.25   (IUPAC: hexahydrogen hexalead tritellurate(IV) dihexaoxotellurate(VI) dihydrate)
 * 4) Obradovicite (heteropolymolybdate, betpakdalite) 7.GB.40
 * 5) Obradovicite-KCu (IMA2010-E, IMA1978-061) 7.GB.40
 * 6) Obradovicite-NaCu (IMA2011-079) 7.GB.40 [no] [no]
 * 7) Obradovicite-NaNa (IMA2011-046) 7.GB.40  [no] [no]
 * 8) O'danielite (alluaudite: IMA1979-040) 8.AC.10   (Na☐ZnZn2[AsO4][AsO3(OH)]2)
 * 9) Odigitriaite (IMA2015-028) 9.E?. [no] [no] (IUPAC: caesium pentasodium pentacalcium [diboron octatriacontaoxotetradecasilicate] difluoride)
 * 10) Odikhinchaite (eudialyte: IMA2020-064) 9.CO. [no] [no]
 * 11) Odinite (serpentine: IMA1988-015) 9.ED.05
 * 12) Odintsovite (IMA1994-052) 9.CJ.50  [no]
 * 13) Oenite (loellingite: IMA1995-007) 2.EB.10f
 * 14) Offretite (zeolitic tectosilicate: IMA1997 s.p., 1969) 9.GD.25   (IUPAC: potassium calcium magnesium (pentaalumotridecasilicate) hexatriacontaoxy pentadecahydrate)
 * 15) Oftedalite (milarite: IMA2003-045a) 9.CM.05
 * 16) Ogdensburgite (IMA1980-054) 8.DC.57   (IUPAC: dicalcium tetrairon(III) zinc hexahydro tetrarsenate hexahydrate)
 * 17) Ognitite (IMA2018-006a) 2.0 [no] [no] [no] (IUPAC: nickel bismuth telluride)
 * 18) Ohmilite (IMA1974-031) 9.DH.10
 * 19) Ojuelaite (arthurite: IMA1979-035) 8.DC.15   (IUPAC: zinc diiron(III) dihydro diarsenate tetrahydrate)
 * 20) Okanoganite-(Y) (okanoganite: IMA1979-048) 9.AJ.35
 * 21) Okayamalite (melilite: IMA1997-002) 9.BB.10  [no] (IUPAC: dicalcium diboron heptaoxosilicate)
 * 22) Okenite (Y: 1828) 9.EA.40   (IUPAC: decacalcium hexatetracontaoxoctadecasilicate octadecahydrate)
 * 23) Okhotskite (IMA1985-010a) 9.BG.20
 * 24) Okieite (decavanadate: IMA2018-080) 4.0 [no] [no]
 * 25) Okruschite (roscherite: IMA2013-097) 8.0 [no] [no] (IUPAC: dicalcium pentamanganese(II) tetraberyllium tetrahydro hexarsenate hexahydrate)
 * 26) Oldhamite (galena, rocksalt: 1863) 2.CD.10   (IUPAC: calcium sulfide)
 * 27) Oldsite (IMA2021-075) 7.EC. [no] [no]
 * 28) Olgite
 * 29) Olekminskite (IMA1989-047) 5.AB.40   (IUPAC: distrontium dicarbonate)
 * 30) Olenite (tourmaline: IMA1985-006) 9.CK.05
 * 31) Olgite (aphthitalite: IMA1979-027) 8.AC.40
 * 32) Olivenite (andalusite: 1820) 8.BB.30   (IUPAC: dicopper hydroxide arsenate)
 * 33) Olkhonskite (schreyerite: IMA1993-035) 4.CB.35   (IUPAC: dichromium trititanium nonaoxide)
 * 34) Olmiite (IMA2006-026) 9.AF.90  [no] (IUPAC: calcium manganese [hydrotrioxosilicate] hydroxide)
 * 35) Olmsteadite (IMA1974-034) 8.DJ.05   (IUPAC: potassium diiron(II) niobium dioxo diphosphate dihydrate)
 * 36) Olsacherite (baryte: IMA1969-009) 7.AD.35   (IUPAC: dilead (tetraoxoselenate(VI)) sulfate)
 * 37) Olshanskyite (IMA1968-025) 6.CA.55
 * 38) Olympite (IMA1979-065) 8.AA.30   (IUPAC: lithium pentasodium diphosphate)
 * 39) Omariniite (IMA2016-050) 2.0 [no] [no] (Cu8Fe2ZnGe2S12)
 * 40) Omeiite (löllingite: IMA1985-xxx, 1978) 2.EB.15a   (IUPAC: osmium diarsenide)
 * 41) Ominelite (IMA1999-025) 9.AJ.05  [no] (IUPAC: iron(II) trialuminium dioxy trioxoborate tetraoxysilicate)
 * 42) Omongwaite (IMA2003-054b) 7.CD.65   (IUPAC: disodium pentacalcium hexasulfate trihydrate)
 * 43) Omphacite (pyroxene: IMA1988 s.p.) 9.DA.20
 * 44) Omsite (hydrotalcite: IMA2012-025) 4.FB. [no]  (IUPAC: dinickel iron(III) hexahydroxide [antimony hexahydroxide])
 * 45) Ondrušite (lindackerite: IMA2008-010) 8.CE.30 [no] [no] (IUPAC: calcium tetracopper diarsenate di(hydroxoarsenate(V)) decahydrate)
 * 46) Oneillite (eudialyte: IMA1998-064) 9.CO.10  [no]
 * 47) Onoratoite (IMA1967-032) 3.DC.80   (IUPAC: octaantimony undecaoxide dichloride)
 * 48) Oosterboschite (IMA1970-016) 2.BC.10   (IUPAC: hepta(lead,copper) pentaselenide)
 * 49) Opal (a mineraloid) (Y: old) 4.DA.10  [no]
 * 50) Ophirite (heteropolytungstate: IMA2013-017) 4.0 [no] [no]
 * 51) Oppenheimerite (IMA2014-073) 7.0 [no] [no] (IUPAC: disodium uranyl disulfate trihydrate)
 * 52) Orcelite (metalloid alloy: IMA1962 s.p., 1959) 2.AB.10   ( (x = 0.23))
 * 53) Ordoñezite (tapiolite: 1955) 4.DB.10   (IUPAC: zinc diantimony(V) hexaoxide)
 * 54) Örebroite (welinite: IMA1985-039) 9.AF.75
 * 55) Oregonite (IMA1962 s.p., 1959) 2.BB.05   (IUPAC: iron dinickel diarsenide)
 * 56) Oreillyite (nitride: IMA2020-030a) 1.0 [no] [no] (IUPAC: dichromium nitride)
 * 57) Organovaite (labuntsovite) 9.CE.30g
 * 58) Organovaite-Mn (IMA2000-031) 9.CE.30g  [no]
 * 59) Organovaite-Zn (IMA2001-006) 9.CE.30g  [no]
 * 60) Orickite (IMA1978-059) 2.FB.15   (IUPAC: copper iron disulfide monohydrate)
 * 61) Orientite (Y: 1921) 9.BJ.05
 * 62) Orlandiite (selenite: IMA1998-038, IMA1998-035) 4.JH.20   (IUPAC: trilead tetrachlorine trioxoselenate(IV) monohydrate)
 * 63) Orlovite (mica: IMA2009-006) 9.EC.20 [no] [no] (IUPAC: potassium dilithium titanium undecaoxytetrasilicate fluoride)
 * 64) Orlymanite (IMA1988-029) 9.EE.30
 * 65) Orpiment (orpiment: 1944) 2.FA.30   (IUPAC: trisulfa diarsenide)
 * 66) Orschallite (sulfite: IMA1990-041) 4.JE.15   (IUPAC: tricalcium disulfite sulfate dodecahydrate)
 * 67) Orthobrannerite (IMA1982 s.p., 1978) 4.DH.05   (IUPAC: uranium(IV) uranium(VI) tetratitanium dihydro dodecaoxide)
 * 68) Orthocuproplatinum (alloy: IMA2018-124) 1.0 [no] [no] (IUPAC: triplatinium copper alloy)
 * 69) Orthoclase (feldspar: IMA1962 s.p., 1823) 9.FA.30   (IUPAC: potassium (aluminium octaoxotrisilicate)
 * 70) Orthogersdorffite (gersdorffite-Pca21: 1982) 2.EB.25 [no] [no]
 * 71) Orthojoaquinite (joaquinite) 9.CE.25
 * 72) Orthojoaquinite-(Ce) (IMA1979-081b) 9.CE.25
 * 73) Orthojoaquinite-(La) (IMA2000-D) 9.CE.25
 * 74) Orthominasragrite (minasragrite: IMA2000-018) 7.DB.20   (IUPAC: vanadium(IV) oxosulfate pentahydrate)
 * 75) Orthopinakiolite (orthopinakiolite: IMA1962 s.p., 1960) 6.AB.40   (IUPAC: dimagnesium manganese(III) dioxo(trioxoborate))
 * 76) Orthoserpierite (IMA1983-022a) 7.DD.30   (IUPAC: calcium tetracopper hexahydro disulfate trihydrate)
 * 77) Orthowalpurgite (IMA1994-024) 8.EA.05   (IUPAC: uranyl tetrabismuth tetraoxo diarsenate dihydrate)
 * 78) Osakaite (ktenasite: IMA2006-049) 7.DE.40   (IUPAC: tetrazinc hexahydro sulfate pentahydrate)
 * 79) Osarizawaite (alunite, alunite: IMA1987 s.p., 1961 Rd) 7.BC.10   (IUPAC: lead (dialuminium copper(II)) hexahydro disulfate)
 * 80) Osarsite (arsenopyrite: IMA1971-025) 2.EB.20   (IUPAC: osmium sulfarsenide)
 * 81) Osbornite (nitride: 1870) 1.BC.15   (IUPAC: titanium nitride)
 * 82) Oscarkempffite (lillianite: IMA2011-029) 2.0 [no] [no] (Ag10Pb4(Sb17Bi9)S48)
 * 83) Oskarssonite (perovskite: IMA2012-088) 3.0 [no]  (IUPAC: aluminium trifluoride)
 * 84) Osmium (element: IMA1991 s.p., 1804 Rd) 1.AF.05
 * 85) Osumilite (milarite) 9.CM.05
 * 86) Osumilite (1953) 9.CM.05   (IUPAC: potassium diiron (pentalumino decasilicate) triacontaoxy)
 * 87) Osumilite-(Mg) (IMA2011-083) 9.CM.05   (IUPAC: potassium dimagnesium trialuminium (dialuminodecasilicate) triacontaoxy)
 * 88) Oswaldpeetersite (IMA2000-034) 5.EA.20   (IUPAC: diuranyl dihydro carbonate tetrahydrate)
 * 89) Otavite (calcite: 1842) 5.AB.05   (IUPAC: cadmium carbonate)
 * 90) Otjisumeite (IMA1978-080) 9.J0.15   (IUPAC: lead tetragermanium nonaoxide)
 * 91) Ottemannite (IMA1968 s.p., 1966) 2.DB.10   (IUPAC: ditin trisulfide)
 * 92) Ottensite (IMA2006-014) 2.MA.05  [no] (IUPAC: trisodium tri(trioxodiantimony) (trisulfa antimonide) trihydrate)
 * 93) Ottohahnite (IMA2015-098) 7.0 [no] [no] (IUPAC: dodecasodium tetrauranyl decasulfate tetradecawater trihydrate)
 * 94) Ottoite (lead-tellurium oxysalt: IMA2009-063) 7.0 [no] [no] (IUPAC: dilead tellurium pentaoxide)

(Cu10Fe3WGe3S16) (IUPAC: diammonium oxalate monohydrate) (IUPAC: dicalcium diniobium hexaoxide oxide) (IUPAC: dicalcium diantimony(V) heptaoxide) (IUPAC: dilead diantimony heptaoxide) (IUPAC: ditin ditantalum heptaoxide) (IUPAC: divanadium(III) vanadium(IV) pentaoxide) (IUPAC: decacalcium diboron nonadocosaoxoctasilicate dodecahydrate) (IUPAC: disodium potassium trialuminium tetrarsenate)
 * 1) Ottrélite (Y: 1842) 9.AF.85   (IUPAC: manganese(II) dialuminium dihydroxide oxide silicate)
 * 2) Otwayite (IMA1976-028) 5.DA.15   (IUPAC: dinickel dihydroxide carbonate monohydrate)
 * 3) Oulankaite (IMA1990-055) 2.BC.40   (IUPAC: pentalead tetracopper tin disulfide ditelluride)
 * 4) Ourayite (lillianite: IMA1976-007) 2.JB.40c   (Ag3Pb4Bi5S13)
 * 5) Oursinite (IMA1982-051) 9.AK.10   (IUPAC: cobalt diuranyl di(hydrotrioxosilicate) hexahydrate)
 * 6) Ovamboite (germanite: IMA1992-039) 2.CB.30  [no]
 * 1) Overite (overite: 1940) 8.DH.20   (IUPAC: calcium magnesium aluminium hydroxide diphosphate tetrahydrate)
 * 2) Owensite (IMA1993-061) 2.FC.05   ((Ba,Pb)6(Cu(1+),Fe,Ni)25S27)
 * 3) Owyheeite (Y: 1920) 2.HC.35   (Ag3Pb10Sb11S28)
 * 4) Oxammite (oxalate: 1870) 10.AB.55
 * 1) Oxo-magnesio-hastingsite [Ca-amphibole: IMA2011-035] 9.D?. [no] [no]
 * 2) Oxo-mangani-leakeite [Na-amphibole: IMA2015-035] 9.D?. [no] [no]
 * 3) Oxybismutomicrolite (pyrochlore: IMA2019-047) 4.0 [no] [no]
 * 4) Oxycalciopyrochlore (pyrochlore: IMA2010 s.p., IMA1978-052 Rd) 4.0
 * 1) Oxycalciomicrolite (pyrochlore: IMA2019-110) 4.0 [no] [no]
 * 2) Oxycalcioroméite (pyrochlore: IMA2012-022) 4.0 [no] [no]
 * 1) Oxy-chromium-dravite (tourmaline: IMA2011-097) 9.CK. [no] [no]
 * 2) Oxy-dravite (tourmaline: IMA2012-004a) 9.CK.05 [no] [no]
 * 3) Oxy-foitite (tourmaline: IMA2016-069) 9.CK.05 [no] [no]
 * 4) Oxykinoshitalite (mica: IMA2004-013) 9.EC.35
 * 5) Oxynatromicrolite (pyrochlore: IMA2013-063) 4.0 [no] [no]
 * 6) Oxyphlogopite (mica: IMA2009-069) 9.EC.20 [no] [no]
 * 7) Oxyplumboroméite (pyrochlore: IMA2013-042) 4.0 [no] [no]
 * 1) Oxy-schorl (tourmaline: IMA2011-011) 9.CK. [no] [no]
 * 2) Oxystannomicrolite (pyrochlore: IMA2010 s.p., 1968 Rd) 4.0 (red. )
 * 1) Oxystibiomicrolite (pyrochlore: IMA2010 s.p., 1938 Rd) 4.0 (red. )
 * 2) Oxy-vanadium-dravite (tourmaline: IMA2011-E, IMA1999-050 Rd) 9.CK.05  [no]
 * 3) Oxyvanite (IMA2008-044) 4.CB.30  [no]
 * 1) Oxyyttrobetafite-(Y) (IMA2022-002)
 * 2) Oyelite (IMA1980-103) 9.HA.80
 * 1) Oyonite (IMA2018-002) 2.0 [no] [no]
 * 2) Ozernovskite (tellurate: IMA2021-059) 4.JN. [no] [no]
 * 3) Ozerovaite (IMA2016-019) 8. [no] [no]