| Název | Chemické složení | Foto |
|---|---|---|
| oboyerit | Pb6H6(Te4+O3)3(Te6+O6)2.2H2O | |
| obradovicit | H4(K,Na)Cu2+Fe22+(AsO4)(MoO4)5.12H2O | |
| obručevit | = yttropyrochlor-(Y) | |
| očeren | synonymum pro sardonyx | |
| o danielit | NaZn3H2(AsO4)3 | |
| odincovit | K2Na4Ca3Ti2Be4Si12O38 | |
| odinit | (Fe3+,Mg,Al,Fe2+)2(Si,Al)2O5(OH)4 | |
| odinit-1M | (Fe3+,Mg,Al,Fe2+)2(Si,Al)2O5(OH)4 | |
| odinit-1T | (Fe3+,Mg,Al,Fe2+)2(Si,Al)2O5(OH)4 | |
| odintsovite | anglický název pro odincovit (viz) | |
| offretit | (K2,Ca)5Al10Si26O72.30H2O | |
| ogdensburgit | Ca3ZnFe63+(AsO4)5(OH)11.5H2O | |
| ohmilit | Sr3(Ti,Fe3+)(Si2O6)2(O,OH).2-3H2O | |
| ochotskit | Ca2(Mn2+,Mg)(Mn3+,Al,Fe3+)2Si3O10(OH)4 | |
| ojelit | 10CaO.B2O3.8SiO2.12,52O(?) | |
| ojuelait | ZnFe23+(AsO4)2(OH)2.4H2O | |
| okanoganit | viz okanoganit-(Y) | |
| okanoganit-(Y) | (Na,Ca)3(Y,Ce)12Si6B2O27F14 | |
| okenit | Ca10Si18O46.18H2O |
|
| oldhamit | (Ca,Mn)S | |
| olekminskit | Sr(Sr,Ca,Ba)(CO3)2 | |
| olenit | Na1-xAl3Al6B3Si6O27(O,OH)4 | |
| olgit | Na(Sr,Ba)PO4 | |
| olchonskit | (Cr,V)2Ti3O9 | |
| oligoklas | plagioklas slož. An10Ab90-An30Ab70 | |
| oligonit | = Mn-siderit | |
| olivenit | Cu2AsO4(OH) |
|
| olivín | (Mg,Fe)2SiO4 | |
| olkhonskite | viz olchonskit | |
| olmsteadit | KFe22+(Nb,Ta)(PO4)2O2.2H2O | |
| olovo | Pb | |
| olowo | synonymum pro olovo | |
| olsacherit | Pb2(SeO4)(SO4) | |
| olšanskyit | Ca3B4(OH)18 | |
| olympit | Na3PO4 | |
| omeiit | (Os,Ru)As2 | |
| omfacit | jadeit:augit:aennit=75-25:25-75:0-25 | |
| ondřejit | = huntit+magnezit | |
| onofrit | = Se-metacinabarit | |
| onoratoit | Sb8O11Cl2 | |
| onyx | odrůda chalcedonu | |
| oosterboschit | (Pd,Cu)7Se5 | |
| opál | SiO2xnH2O | |
| opál drahý | drahokamová odrůda opálu | |
| opál dřevitý | ||
| opál ohnivý | odrůda opálu | |
| orangit | odrůda thoritu | |
| orcelit | Ni5-xAs2 | |
| ordonezit | ZnSb2O6 | |
| oregonit | Ni2FeAs2 | |
| orfeit | H6Pb10Al20(PO4)12(SO4)5(OH)40.11H2O(?) | |
| orickit | cca 2CuFeS2.H2O | |
| orientit | Ca2Mn2+Mn23+Si3O10(OH)4 | |
| orlit | Pb-uranyl silikát | |
| orlymanit | Ca4Mn3Si8O20(OH)6.2H2O | |
| orschallit | Ca3(SO3)2SO4.12H2O | |
| orthit | = allanit-(Ce) | |
| orthowalpurgine | mezinárodní název pro ortowalpurgin (viz) | |
| ortoantigorit | odr. lizarditu | |
| ortobrannerit | U4+U6+Ti4O12(OH)2 | |
| ortoericssonit | BaMn2(Fe3+O)Si2O7(OH) | |
| ortoferosilit | (Fe2+,Mg)2Si2O6 | |
| ortochamosit | (Fe2+,Mg,Fe3+)5Al(Si3Al)O10(OH,O)8 | |
| ortochryzotil | Mg3Si2O5(OH)4 | |
| ortojoaquinit-(Ce) | Ba2NaCe2Fe2+Ti2Si8O26(OH,O).H2O | |
| ortoklas | KAlSi3O8 |
|
| ortopinakiolit | (Mg,Mn2+)2Mn38+O5 | |
| ortoserpierit | Ca(Cu,Zn)4(SO4)2(OH)6.3H2O | |
| ortowalpurgin | (UO2)Bi4O4(AsO4)2.2H2O | |
| oruetit | Bi8TeS4 | |
| osarizawait | PbCuAl2(SO4)2(OH)6 | |
| osarsit | (Os,Ru)AsS | |
| osbornit | TiN | |
| osmiridium | (Ir,Os) = osmiové iridium | |
| osmium | (Os,Ir),s,Os>80% | |
| ostrodýmec | synonymum pro atacamit | |
| osumilit | (K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30.H2O | |
| osumilit-(Mg) | (K,Na)(Mg,Fe2+)2(Al,Fe3+)3(Si,Al)12O30.H2O | |
| otavit | CdCO3 | |
| otjisumeit | PbGe4O9 | |
| ottemannit | Sn2S3 | |
| ottrelit | (Mn,Fe2+,Mg)2Al4Si2O10(OH)4 | |
| otwayit | Ni2(CO3)(OH)2.H2O | |
| oulankait | (Pd,Pt)5(Cu,Fe)4SnTe2S2 | |
| ourayit | Ag25Pb30Bi41S104 | |
| oursinit | (Co,Mg)(UO2)2Si2O7.6H2O | |
| overit | CaMgAl(PO4)2(OH).4H2O | |
| owensit | (Ba,Pb)6(Cu,Fe,Ni)25S27 | |
| owyheeit | Pb10-2xAg3+xSb11+xS28, -0,13|
| |
| oxammit | (NH4)2C2O4.H2O | |
| oyamalit | xenotim s příměsí TR | |
| oyelit | Ca10Si8B2O29.12,5H2O | |
| ozokerit | = směs uhlovodíků parafínové řady | |
| oenit | (Co,Ni,Fe)Sb(As,Sb,S) | |
| okajamalit | Ca2B2SiO7 | |
| oneillit | Na15Ca3Mn3Fe3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 | |
| organovait-(Mn) | K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4.6(H2O) | |
| organovait-(Zn) | K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4.6H2O | |
| orlandiit | Pb3Cl4(SeO3).H2O | |
| ortojoaquinit-(La) | Ba2Na(La,Ce)2Fe+2Ti2Si8O26(OH,O,F).(H2O) | |
| ortominasragrit | V+4O(SO4)(H2O)5 | |
| oswaldpeetersit | (UO2)2(CO3)(OH)2.4H2O |
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