Rejestr A-Z
- O'danielite Na☐Zn2+Zn2+2(As5+O4)[As5+O3(OH)]2
- Obsydian Czarny
- Obsydian Mahoniowy
- Obsydian Śnieżny SiO₂
- Odinite (Fe3+,Mg,Al,Fe2+)2.5(Si,Al)2O5(OH)4
- Ohmilite Sr3(Ti4+,Fe3+)(Si2O6)2(O,OH)·2H2O
- Ohtaniite Mg3(Si0.5☐0.5)Si2O8
- Okayamalit Ca2B2SiO7
- Okenit Ca10Si18O46·18H2O
- Oldhamite CaS2-
- Oliwenit Cu2+2As5+O4(OH)
- Oliwin / Perydot (Mg,Fe)₂SiO₄
- Onyks SiO₂
- Opal SiO2·nH2O
- Opal Andyjski SiO₂·nH₂O
- Opal Żółty SiO₂·nH₂O
- Orpiment (aurypigment) As3+2S2-3
- Orschallite Ca3(S4+O3)2S6+O4·12H2O
- Orthobrannerite U4+U6+Ti4+4O12(OH)2
- Ortoklaz KAlSi3O8
- Osarizawaite Cu2+Pb2+Al2(S6+O4)2(OH)6
- Ottohahnite Na6(U6+O2)2(S6+O4)5(H2O)7·1.5H2O
- Ottoite Pb2+2Te6+O5
- Oulankaite Pd5Cu4SnTe2S2
- Oursinite Co2+(U6+O2)2(SiO3OH)2·6H2O
- Oxykinoshitalite BaMg2Ti4+O2(Si2Al2)O10
- Oxyyttrobetafite-(Y) Y2Ti4+2O6O