Mineral Names Starting With O
Comprehensive List of Minerals
Browse minerals by first letter
Observe the outstanding minerals that begin with O, such as Olivine and Orthoclase. These minerals are essential components of many rock types and have significant roles in geology, from mantle studies to weathering processes.
| Name | CNMMN/CNMNC Approved Formula | First Reference |
|---|---|---|
| Oberthürite | Rh3Ni32S32 | Canadian Mineralogist 59 (2021), 1833 |
| Oberwolfachite | SrFe3+ (AsO )(SO )(OH) 3 4 4 6 |
Mineralogical Magazine 85 (2021), 808 |
| Oboniobite | Mg4Nb2O9 | Chinese Journal of Geology 59 (2024), 1466 |
| Obradovicite-KCu | [K2(H2O)17Cu(H2O)6][Mo8As2Fe3+ O (OH) ] 3 34 3 |
Mineralogical Magazine 50 (1986), 283 |
| Obradovicite-NaCu | [Na2(H2O)17Cu(H2O)6][Mo8As2Fe3+ O (OH) ] 3 34 3 |
Mineralogical Magazine 76 (2012), 1175 |
| Obradovicite-NaNa | [Na2(H2O)16Na(H2O)6][Mo8As2Fe3+ O (OH) ] 3 33 4 |
Mineralogical Magazine 76 (2012), 1175 |
| O’danielite | Na☐ZnZn2(AsO4)[AsO3(OH)]2 | Neues Jahrbuch für Mineralogie Monatshefte (1981), 155 |
| Odigitriaite | CsNa5Ca5[Si14B2O38]F2 | Mineralogical Magazine 81 (2017), 113 |
| Odikhinchaite | Na9Sr3[(H2O)2Na]Ca6Mn3Zr3NbSi(Si24O72)O(OH)3 (CO3)·H2O |
Minerals 10 (2020), 1062 |
| Odinite | (Fe3+,Mg,Al,Fe2+)2.5(Si,Al)2O5(OH)4 | Clay Minerals 23 (1988), 237 |
| Odintsovite | K2Na4Ca3Ti2Be4Si12O38 | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 124(5) (1995), 92 |
| Oenite | CoSbAs | Canadian Mineralogist 36 (1998), 855 |
| Offretite | KCaMg(Si13Al5)O36·15H2O | Comptes Rendus de l’Académie des Sciences de Paris 111 (1890), 1002 |
| Oftedalite | K(ScCa)☐2Be3Si12O30 | Canadian Mineralogist 44 (2006), 943 |
| Ogdensburgite | Ca2Fe3+ Zn(AsO ) (OH) ·6H O 4 4 4 6 2 |
Mineralogical Record 12 (1981), 369 |
| Ognitite | NiBiTe | Mineralogical Magazine 83 (2019), 695 |
| Ohmilite | Sr3(Ti,Fe3+)(Si2O6)2(O,OH)·2H2O | Mineralogical Journal 7 (1973), 298 |
| Ohtaniite | Mg3(Si0.5☐0.5)Si2O8 | Discover Minerals 1 (2024), 1 |
| Ojuelaite | ZnFe3+ (AsO ) (OH) ·4H O 2 4 2 2 2 |
Bulletin de Minéralogie 104 (1981), 582 |
| Okanoganite-(Y) | (Y,REE ,Ca,Na,Th)16(Fe3+,Ti)(Si,B,P)10(O,OH)38F10 | American Mineralogist 65 (1980), 1138 |
| Okayamalite | Ca2B2SiO7 | Mineralogical Magazine 62 (1998), 703 |
| Okenite | Ca10Si18O46·18H2O | Archiv für die Gesammte Naturlehre 14 (1828), 333 |
| Okhotskite | Ca2(Mn2+Mn3+ )(Si O )(SiO )(OH) ·H O 2 2 7 4 2 2 |
Mineralogical Magazine 51 (1987), 611 |
| Okieite | Mg3[V10O28]·28H2O | Canadian Mineralogist 58 (2020), 125 |
| Okruginite | Cu2SnSe3 | Mineralogical Magazine 88 (2024), 31 |
| Okruschite | Ca2Mn2+ Be4(AsO4)6(OH)4·6H2O 5 |
European Journal of Mineralogy 26 (2014), 589 |
| Oldhamite | CaS | Philosophical Transactions of the Royal Society of London 160 (1870), 195 |
| Oldsite | K2Fe2+[(UO2)(SO4)2]2(H2O)8 | Mineralogical Magazine 87 (2023), 151 |
| Olekminskite | Sr2(CO3)2 | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 120(3) (1991), 89 |
| Olenite | NaAl3Al6(Si6O18)(BO3)3O3(OH) | Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 115 (1986), 119 |
| Olgafrankite | Ni3Ge | CNMNC Newsletter 82 – Mineralogical Magazine 88 (2024), xxx; European Journal of Mineralogy 36 (2024), 1005 |
| Olgite | (Ba,Sr)(Na,Sr,REE )2Na(PO4)2 | Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 109 (1980), 347 |
| Olivenite | Cu2(AsO4)(OH) | A System of Mineralogy, Vol. 2. Archibald Constable, Edinburgh (1820), 331 |
| Olkhonskite | Cr2Ti3O9 | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 123(4) (1994), 98 |
| Olmiite | CaMn[SiO3(OH)](OH) | Mineralogical Magazine 71 (2007), 193 |
| Olmsteadite | KFe2+ NbO (PO ) ·2H O 2 2 4 2 2 |
American Mineralogist 61 (1976), 5 |
| Olsacherite | Pb2(Se6+O4)(SO4) | American Mineralogist 54 (1969), 1519 |
| Olsenite | KFe4(PO4)3 | American Mineralogist 109 (2024), 2142 |
| Olshanskyite | Ca2[B3O3(OH)6]OH·3H2O | Doklady Akademii Nauk SSSR 184 (1969), 1398 |
| Olympite | LiNa5(PO4)2 | Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 109 (1980), 476 |
| Omariniite | Cu8Fe2ZnGe2S12 | Mineralogical Magazine 81 (2017), 1151 |
| Omeiite | OsAs2 | Acta Geologica Sinica 52 (1978), 163 |
| Ominelite | Fe2+Al3O2(BO3)(SiO4) | American Mineralogist 87 (2002), 160 |
| Omongwaite | Na2Ca5(SO4)6·3H2O | Mineralogical Magazine 72 (2008), 1307 |
| Omphacite | (Ca,Na)(Mg,Fe,Al)Si2O6 | Handbuch Der Mineralogie, Vol. 2. Craz und Gerlach, Freiberg (1815), 302 |
| Omsite | Ni2Fe3+(OH)6[Sb(OH)6] | Mineralogical Magazine 76 (2012), 1347 |
| Ondrušite | CaCu4(AsO4)2(AsO3OH)2·10H2O | Canadian Mineralogist 49 (2011), 885 |
| Oneillite | Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3 (OH,Cl)2 |
Canadian Mineralogist 37 (1999), 1295 |
| Onoratoite | Sb8O11Cl2 | Mineralogical Magazine 36 (1968), 1037 |
| Oosterboschite | (Pd,Cu)7Se5 | Bulletin de la Société Française de Minéralogie et de Cristallographie 93 (1970), 476 |
| Ootannite | Th4+ 6+ 2W 4O16·5H2O |
CNMNC Newsletter 76 – Mineralogical Magazine 88 (2024), 105; European Journal of Mineralogy 35 (2023), 1073 |
| Opal | SiO2·nH2O | original paper? |
| Ophirite | Ca2Mg4[Zn2Mn3+ (H O) (Fe3+W O ) ]·46H O 2 2 2 9 34 2 2 |
American Mineralogist 99 (2014), 1045 |
| Oppenheimerite | Na2(UO2)(SO4)2·3H2O | Mineralogical Magazine 79 (2015), 1123 |
| Orcelite | Ni5-xAs2 (x 0.25) | Comptes Rendus de l’Académie des Sciences de Paris 249 (1959), 1771 |
| Ordoñezite | ZnSb5+ O 2 6 |
American Mineralogist 40 (1955), 64 |
| Örebroite | Mn2+ 5+ 3+ 6(Sb Fe )(SiO4)2O6 |
American Mineralogist 71 (1986), 1522 |
| Oregonite | FeNi2As2 | Neues Jahrbuch für Mineralogie Monatshefte (1959), 239 |
| Oreillyite | Cr2N | Minerals 10 (2020), 1118 |
| Organovaite-Mn | K2MnNb4(Si4O12)2O4·5-7H2O | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 130(2) (2001), 46 |
| Organovaite-Zn | K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 131(1) (2002), 29 |
| Orickite | CuFeS2·nH2O | American Mineralogist 68 (1983), 245 |
| Orientite | Ca8Mn3+ 0(SiO4)3(Si3O10)3(OH)10·4H2O 1 | American Journal of Science 1 (1921), 491 |
| Orishchinite | Ni2P | Mineralogy and Petrology 116 (2022), 369 |
| Orlandiite | Pb3Cl4(Se4+O3)·H2O | Canadian Mineralogist 37 (1999), 1493 |
| Orlovite | KLi2Ti(Si4O10)(OF) | New Data on Minerals 46 (2011), 13 |
| Orlymanite | Ca4Mn2+ Si O (OH) ·2H O 3 8 20 6 2 |
American Mineralogist 75 (1990), 923 |
| Orpiment | As2S3 | original paper? |
| Orschallite | Ca3(S4+O3)2(SO4)·12H2O | Mineralogy and Petrology 48 (1993), 167 |
| Orthobrannerite | U4+U6+Ti4O12(OH)2 | Acta Geologica Sinica 52 (1978), 241 |
| Orthoclase | K(AlSi3O8) | Vollständige Charakteristik des Mineral- Systems. Arnoldische, Dresden (1823), 271 |
| Orthocuproplatinum | Pt3Cu | Mineralogy and Petrology 113 (2019), 527 |
| Orthogersdorffite | NiAsS | Canadian Mineralogist 24 (1986), 27 |
| Orthojoaquinite-(Ce) | NaBa2Fe2+Ce2Ti2(SiO3)8O2(O,OH)·H2O | American Mineralogist 67 (1982), 809 |
| Orthojoaquinite-(La) | NaBa2Fe2+La2Ti2(SiO3)8O2(OH,O,F)·H2O | Canadian Mineralogist 39 (2001), 757 |
| Orthominasragrite | V4+O(SO4)·5H2O | Canadian Mineralogist 39 (2001), 1325 |
| Orthopinakiolite | Mg2Mn3+O2(BO3) | Arkiv för Mineralogi och Geologi 2 (1960), 551 |
| Orthoserpierite | CaCu4(SO4)2(OH)6·3H2O | Schweizerische Mineralogische und Petrographische Mitteilungen 65 (1985), 1 |
| Orthowalpurgite | (UO2)Bi4O4(AsO4)2·2H2O | European Journal of Mineralogy 7 (1995), 1313 |
| Osakaite | Zn4(SO4)(OH)6·5H2O | Canadian Mineralogist 45 (2007), 1511 |
| Osarizawaite | Pb(Al2Cu2+)(SO4)2(OH)6 | Mineralogical Journal 3 (1961), 181 |
| Osarsite | OsAsS | American Mineralogist 57 (1972), 1029 |
| Osbornite | TiN | Philosophical Transactions of the Royal Society of London 160 (1870), 189 |
| Oscarkempffite | Ag10Pb4(Sb17Bi9)S48 | Mineralogical Magazine 80 (2016), 809 |
| Oskarssonite | AlF3 | Mineralogical Magazine 78 (2014), 215 |
| Osmium | Os | Philosophical Transactions of the Royal Society of London 329 (1804), 411 |
| Osumilite | KFe2Al3(Al2Si10)O30 | American Mineralogist 41 (1956), 104 |
| Osumilite-(Mg) | KMg2Al3(Al2Si10)O30 | Zapiski Rossiyskogo Mineralogicheskogo Obshchestva 141(4) (2012), 27 |
| Oswaldpeetersite | (UO2)2(CO3)(OH)2·4H2O | Canadian Mineralogist 39 (2001), 1685 |
| Otavite | Cd(CO3) | Centralblatt für Mineralogie, Geologie und Paläontologie (1906), 388 |
| Otjisumeite | PbGe4O9 | Neues Jahrbuch für Mineralogie Monatshefte (1981), 49 |
| Ottemannite | Sn2S3 | Fortschritte der Mineralogie 42 (1966), 211 |
| Ottensite | Na3(Sb2O3)3(SbS3)·3H2O | Mineralogical Record 38 (2007), 77 |
| Ottohahnite | Na6(UO2)2(SO4)5(H2O)7·1.5H2O | Mineralogical Magazine 81 (2017), 753 |
| Ottoite | Pb2TeO5 | American Mineralogist 95 (2010), 1329 |
| Ottrélite | Mn2+Al2O(SiO4)(OH)2 | Annales des Mines 2 (1842), 357 |
| Otwayite | Ni2(CO3)(OH)2·H2O | American Mineralogist 62 (1977), 999 |
| Oulankaite | Pd5Cu4SnTe2S2 | European Journal of Mineralogy 8 (1996), 311 |
| Ourayite | Ag3Pb4Bi5S13 | Neues Jahrbuch für Mineralogie Abhandlungen 131 (1977), 56 |
| Oursinite | Co(UO2)2(SiO3OH)2·6H2O | Bulletin de Minéralogie 106 (1983), 305 |
| Ovamboite | Cu10Fe3WGe3S16 | Transactions (Doklady) of the Russian Academy of Sciences, Earth Science Section 393A (2003), 1329 |
| Overite | CaMgAl(PO4)2(OH)·4H2O | American Mineralogist 25 (1940), 315 |
| Owensite | (Ba,Pb)6(Cu1+,Fe,Ni)25S27 | Canadian Mineralogist 33 (1995), 665 |
| Owyheeite | Ag3Pb10Sb11S28 | American Mineralogist 6 (1921), 82 |
| Oxammite | (NH4)2(C2O4)·H2O | Rural Carolinian 1 (1870), 469 |
| Oxo-magnesio-hastingsite | NaCa2(Mg2Fe3+ )(Si Al )O O 3 6 2 22 2 |
Mineralogical Magazine 77 (2013), 2773 |
| Oxo-mangani-leakeite | NaNa2(Mn3+ Li)Si O O 4 8 22 2 |
Mineralogical Magazine 80 (2016), 1013 |
| Oxybismutomicrolite | (Bi1.33☐0.67)Ta2O6O | Mineralogical Magazine 84 (2020), 444 |
| Oxycalciomicrolite | Ca2Ta2O7 | Mineralogical Magazine 84 (2020), 854 |
| Oxycalciopyrochlore | Ca2Nb2O6O | Canadian Mineralogist 17 (1979), 583 |
| Oxycalcioroméite | Ca2Sb5+ O 2 7 |
Mineralogical Magazine 77 (2013), 3027 |
| Oxy-chromium-dravite | NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O | American Mineralogist 97 (2012), 2024 |
| Oxy-dravite | Na(Al2Mg)(Al5Mg)(Si6O18)(BO3)3(OH)3O | American Mineralogist 98 (2013), 1442 |
| Oxy-foitite | (Fe2+Al2)Al6(Si6O18)(BO3)3(OH)3O | European Journal of Mineralogy 29 (2017), 889 |
| Oxykinoshitalite | BaMg2Ti4+O2(Si2Al2)O10 | Canadian Mineralogist 43 (2005), 1501 |
| Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) | Mineralogical Magazine 81 (2017), 743 |
| Oxyphlogopite | K(Mg,Ti,Fe)3[(Si,Al)4O10](O,F)2 | Zapiski Rossiyskogo Mineralogicheskogo Obshchestva 139(3) (2010), 31 |
| Oxyplumbopyrochlore | Pb2Nb2O6O | CNMNC Newsletter 81 – Mineralogical Magazine 88 (2024), 632; European Journal of Mineralogy 36 (2024), 917 |
| Oxyplumboroméite | Pb2Sb2O7 | Mineralogical Magazine 77 (2013), 2931 |
| Oxy-schorl | Na(Fe2+ Al)Al (Si O )(BO ) (OH) O 2 6 6 18 3 3 3 |
American Mineralogist 98 (2013), 485 |
| Oxystannomicrolite | Sn2Ta2O6O | Bulletin de la Commission Géologique de Finlande 229 (1967), 173 |
| Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O | Geologiska Foreningens i Stockholm Forhandlingar 109 (1987), 105 |
| Oxy-vanadium-dravite | NaV3(V4Mg2)(Si6O18)(BO3)3(OH)3O | Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 130(2) (2001), 59 |
| Oxyvanite | V3+ V4+O 2 5 |
Zapiski Rossiyskogo Mineralogicheskogo Obshchestva 138(3) (2009), 70 |
| Oxyyttrobetafite-(Y) | Y2Ti2O6O | Journal of Mineralogical and Petrological Sciences 117 (2022), 220728 |
| Oyelite | Ca5BSi4O13(OH)3·4H2O | Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 79 (1984), 267 |
| Oyonite | Ag3Mn2Pb4Sb7As4S24 | Minerals 8 (2018), 192 |
| Ozernovskite | Fe3+ 4+ 4+ 4(Te O4)(Te O3)4∙7H2O |
CNMNC Newsletter 63 – Mineralogical Magazine 85 (2021), 910; European Journal of Mineralogy 33 (2021), 639 |
| Ozerovaite | Na2KAl3(AsO4)4 | European Journal of Mineralogy 31 (2019), 159 |