A–Z index

O (141)

• O'danielite H₂NaZn₃(AsO₄)₃ IMA mineral species
• Oberthürite IMA mineral species
• Oberwolfachite IMA mineral species
• Oboniobite Mg₄Nb₂O₉ IMA mineral species
• Oboyerite H₆(Pb,Ca)₆(Te₄+O₃)₃(Te₆+O₆)₂ * 2H₂O IMA mineral species
• Obradovicite-KCu [K₂(H₂O)₁₇Cu(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₄(OH)₃] IMA mineral species
• Obradovicite-NaCu [Na₂(H₂O)₁₇Cu(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₄(OH)₃] IMA mineral species
• Obradovicite-NaNa [Na₂(H₂O)₁₆Na(H₂O)₆][Mo₈As₂Fe³⁺₃O₃₃(OH)₄] IMA mineral species
• Obsidian Rock
• Ocean Jasper Rock
• Odigitriaite CsNa₅Ca₅[Si₁₄B₂O₃₈]F₂ IMA mineral species
• Odikhinchaite IMA mineral species
• Odinite (Fe,Mg,Al,Fe,Ti,Mn)₂.₄((Si,Al)₂O₅)(OH)₄ IMA mineral species
• Odintsovite K₂Na₄Ca₃Ti₂Be₄Si₁₂O₃₈ IMA mineral species
• Oenite CoSbAs IMA mineral species
• Offretite KCaMg(Si₁₃Al₅)O₃₆·15H₂O IMA mineral species
• Oftedalite KSc₂☐₂Be₃Si₁₂O₃₀ IMA mineral species
• Ogdensburgite Ca₂Fe³⁺₄(Zn,Mn²⁺)(AsO₄)₄(OH)₆·6H₂O IMA mineral species
• Ognitite NiBiTe IMA mineral species
• Ohmilite Sr₃(Ti,Fe³⁺)(Si₂O₆)₂(O,OH)·2H₂O IMA mineral species
• Ohtaniite Mg₃(Si₀,₅◻₀,₅)Si₂O₈ IMA mineral species
• Ojuelaite ZnFe³⁺₂(AsO₄)₂(OH)₂·4H₂O IMA mineral species
• Okanoganite-(Y) (Na,Ca)₃(Y,Ce)₁₂Si₆B₂O₂₇F₁₄ IMA mineral species
• Okayamalite Ca₂B(BSiO₇) IMA mineral species
• Okenite Ca₁₀Si₁₈O₄₆·18H₂O IMA mineral species
• Okhotskite Ca₂Mn²⁺Mn³⁺₂(Si₂O₇)(SiO₄)(OH)₂·H₂O IMA mineral species
• Okieite Mg₃[V₁₀O₂₈]·28H₂O IMA mineral species
• Okruginite Cu₂SnSe₃ IMA mineral species
• Okruschite Ca₂Mn²⁺₅Be₄(AsO₄)₆(OH)₄·6H₂O IMA mineral species
• Oldhamite CaS IMA mineral species
• Oldsite-(K) K₂Fe²⁺[(UO₂)(SO₄)₂]₂(H₂O)₈ IMA mineral species
• Olekminskite Sr(Sr,Ca,Ba)(CO₃)₂ IMA mineral species
• Olenite Na(Al₃)Al₆(Si₆O₁₈)(BO₃)₃O₃(OH) IMA mineral species
• Olgafrankite Ni₃Ge IMA mineral species
• Olgite Na(Na,Sr)₂Ba(PO₄)₂ IMA mineral species
• Oligoclase Mineral variety
• Olivenite Cu₂(AsO₄)(OH) IMA mineral species
• Olivine Mineral group
• Olkhonskite (Cr,V)₂Ti₃O₉ IMA mineral species
• Olmiite CaMn[SiO₃(OH)](OH) IMA mineral species
• Olmsteadite KFe²⁺₂(Nb₅+,Ta₅+)(PO₄)₂O₂ * 2H₂O IMA mineral species
• Olsacherite Pb₂(SeO₄)(SO₄) IMA mineral species
• Olsenite KFe₄(PO₄)₃ IMA mineral species
• Olshanskyite Ca₂[B₃O₃(OH)₆]OH·3H₂O IMA mineral species
• Olympite LiNa₅(PO₄)₂ IMA mineral species
• Omariniite Cu₈Fe₂ZnGe₂S₁₂ IMA mineral species
• Omeiite (Os,Ru)As₂ IMA mineral species
• Ominelite (Fe²⁺,Mg)(Al,Fe³⁺)₃(SiO₄)(BO₃)O₂ IMA mineral species
• Omongwaite Na₂Ca₅(SO₄)₆·3H₂O IMA mineral species
• Omphacite (Ca,Na)(Mg,Fe,Al)Si₂O₆ IMA mineral species
• Omsite Ni₂Fe³⁺(OH)₆[Sb(OH)₆] IMA mineral species
• Ondrušite CaCu₄(AsO₄)₂(AsO₃OH)₂·10H₂O IMA mineral species
• Oneillite Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂ IMA mineral species
• Onoratoite Sb₈Cl₂O₁₁ IMA mineral species
• Onyx SiO₂ Mineral variety
• Oosterboschite (Pd,Cu)₇Se₅ IMA mineral species
• Ootannite Th⁴⁺₂W⁶⁺₄O₁₆·5H₂O IMA mineral species
• Opal SiO₂·nH₂O IMA mineral species
• Opal Doublet & Triplet Mineral variety
• Opalite Natural glass
• Opalized Fossil Fossil
• Ophirite Ca₂Mg₄[Zn₂Mn³⁺₂(H₂O)₂(Fe³⁺W₉O₃₄)₂]·46H₂O IMA mineral species
• Oppenheimerite Na₂(UO₂)(SO₄)₂·3H₂O IMA mineral species
• Orange Calcite Mineral variety
• Orcelite Ni₅-xAs₂, x ~ ₀.₂₅ IMA mineral species
• Ordoñezite ZnSb⁵⁺₂O₆ IMA mineral species
• Örebroite IMA mineral species
• Oregonite Ni₂FeAs₂ IMA mineral species
• Oreillyite Cr₂N IMA mineral species
• Organovaite-Mn K₂MnNb₄(Si₄O₁₂)₂O₄·5-7H₂O IMA mineral species
• Organovaite-Zn K₂Zn(Nb,Ti)₄(Si₄O₁₂)₂(O,OH)₄·6H₂O IMA mineral species
• Orickite ₂CuFeS₂ * H₂O IMA mineral species
• Orientite Ca₈Mn³⁺₁₀(SiO₄)₃(Si₃O₁₀)₃(OH)₁₀·4H₂O IMA mineral species
• Orishchinite Ni₂P IMA mineral species
• Orlandiite Pb₃Cl₄(Se⁴⁺O₃)·H₂O IMA mineral species
• Orlovite KLi₂TiSi₄O₁₁F IMA mineral species
• Orlymanite Ca₄Mn²⁺₃Si₈O₂₀(OH)₆·2H₂O IMA mineral species
• Orpiment As₂S₃ IMA mineral species
• Orschallite Ca₃(S⁴⁺O₃)₂(SO₄)·12H₂O IMA mineral species
• Orthobrannerite U⁴⁺U⁶⁺Ti₄O₁₂(OH)₂ IMA mineral species
• Orthoceras Fossil
• Orthoclase K(AlSi₃O₈) IMA mineral species
• Orthocuproplatinum Pt₃Cu IMA mineral species
• Orthogersdorffite NiAsS IMA mineral species
• Orthojoaquinite-(Ce) NaBa₂Ce₂FeTi₂[Si₄O₁₂]₂O₂(O,OH)·H₂O IMA mineral species
• Orthojoaquinite-(La) NaBa₂La₂Fe²⁺Ti₂[Si₄O₁₂]₂O₂(O,OH)·H₂O IMA mineral species
• Orthominasragrite (V⁴⁺O)(SO₄)·5H₂O IMA mineral species
• Orthopinakiolite Mg₂Mn³⁺O₂(BO₃) IMA mineral species
• Orthoserpierite Ca(Cu,Zn)₄(SO₄)₂(OH)₆·3H₂O IMA mineral species
• Orthowalpurgite (BiO)₄(UO₂)(AsO₄)₂·2H₂O IMA mineral species
• Osakaite Zn₄(SO₄)(OH)₆·5H₂O IMA mineral species
• Osarizawaite CuPbAl₂(SO₄)₂(OH)₆ IMA mineral species
• Osarsite OsAsS IMA mineral species
• Osbornite TiN IMA mineral species
• Oscarkempffite Ag₁₀Pb₄(Sb₁₇Bi₉)S₄₈ IMA mineral species
• Oskarssonite AlF₃ IMA mineral species
• Osmium (native) Os IMA mineral species
• Osumilite (K,Na)(Fe²⁺,Mg)₂(Al,Fe³⁺)₃(Si,Al)₁₂O₃₀ IMA mineral species
• Osumilite-(Mg) KMg₂Al₃(Al₂Si₁₀)O₃₀ IMA mineral species
• Oswaldpeetersite (UO₂)₂(CO₃)(OH)₂·4H₂O IMA mineral species
• Otavite CdCO₃ IMA mineral species
• Otjisumeite PbGe₄O₉ IMA mineral species
• Ottemannite Sn₂S₃ IMA mineral species
• Ottensite Na₃(Sb₂O₃)₃(SbS₃)·3H₂O IMA mineral species
• Ottohahnite Na₆(UO₂)₂(SO₄)₅(H₂O)₇·1.5H₂O IMA mineral species
• Ottoite Pb₂TeO₅ IMA mineral species
• Ottrélite IMA mineral species
• Otwayite Ni₂(CO₃)(OH)₂·H₂O IMA mineral species
• Oulankaite (Pd,Pt)₅(Cu,Fe)₄SnTe₂S₂ IMA mineral species
• Ourayite Ag₃Pb₄Bi₅S₁₃ IMA mineral species
• Oursinite Co(UO₂)₂(SiO₃OH)₂·6H₂O IMA mineral species
• Ovamboite Cu₁₀Fe₃WGe₃S₁₆ IMA mineral species
• Overite CaMgAl(PO₄)₂(OH)·4H₂O IMA mineral species
• Owensite (Ba,Pb)₆(Cu,Fe,Ni)₂₅S₂₇ IMA mineral species
• Owyheeite Ag₃Pb₁₀Sb₁₁S₂₈ IMA mineral species
• Oxammite (NH₄)₂(C₂O₄)·H₂O IMA mineral species
• Oxo-magnesio-hastingsite NaCa₂(Mg₂Fe³⁺₃)(Si₆Al₂)O₂₂O₂ IMA mineral species
• Oxo-mangani-leakeite NaNa₂(Mn³⁺₄Li)Si₈O₂₂O₂ IMA mineral species
• Oxy-chromium-dravite NaCr₃(Cr₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃O IMA mineral species
• Oxy-dravite Na(Al₂Mg)(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃O IMA mineral species
• Oxy-foitite ☐(Fe²⁺Al₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O IMA mineral species
• Oxy-schorl Na(Fe²⁺₂Al)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O IMA mineral species
• Oxy-vanadium-dravite Na(V)₃(V₄Mg₂)Si₆O₁₈(BO₃)₃(OH)₃O IMA mineral species
• Oxybismutomicrolite (Bi₁.₃₃☐₀.₆₇)Ta₂O₆O IMA mineral species
• Oxycalciomicrolite Ca₂Ta₂O₇ IMA mineral species
• Oxycalciopyrochlore Ca₂Nb₂O₆O IMA mineral species
• Oxycalcioroméite Ca₂Sb₂O₆O IMA mineral species
• Oxykinoshitalite BaMg₂Ti⁴⁺O₂(Si₂Al₂)O₁₀ IMA mineral species
• Oxynatromicrolite (Na,Ca,U)₂(Ta,Nb)₂O₆(O,F) IMA mineral species
• Oxyphlogopite K(Mg,Ti,Fe)₃[(Si,Al)₄O₁₀](O,F)₂ IMA mineral species
• Oxyplumbopyrochlore Pb₂Nb₂O₆O IMA mineral species
• Oxyplumboroméite Pb₂Sb₂O₇ IMA mineral species
• Oxystannomicrolite Sn₂Ta₂O₆O IMA mineral species
• Oxystibiomicrolite (Sb³⁺,Ca)₂Ta₂O₆O IMA mineral species
• Oxyvanite V³⁺₂V⁴⁺O₅ IMA mineral species
• Oxyyttrobetafite-(Y) Y₂Ti₂O₆O IMA mineral species
• Oxyyttropyrochlore-(Y) Mineral variety
• Oyelite Ca₁₀Si₈B₂O₂₉ * 12.₅H₂O IMA mineral species
• Oyonite Ag₃Mn₂Pb₄Sb₇As₄S₂₄ IMA mineral species
• Ozernovskite IMA mineral species
• Ozerovaite Na₂KAl₃(AsO₄)₄ IMA mineral species