Minerals by A-Z
Use the e-Rocks A-Z list of minerals, varieties and related names to find things on our database, available for sale.
This list contains both valid mineral names, colloquialisms and other catalogue entries that relate to items listed here on e-Rocks.
Please use our Mineral Database to explore our database of sold minerals.
| Title | Formula | Variety Of | Items | |
|---|---|---|---|---|
| Obsidian | 1 | |||
| Oellacherite | Muscovite | 1 | ||
| Offretite | KCaMgAl5Si13O36·16H2O or near | 1 | ||
| Okenite | CaSi2O5·2H2O | 5 | ||
| Olivenite | Cu2(AsO4)(OH) | 7 | ||
| Olmiite | CaMn2+[SiO3(OH)](OH) | 3 | ||
| Omphacite | (Ca,Na)(Mg,Al)Si2O6 | 1 | ||
| Omsite | Ni2Fe3+(OH)6[Sb(OH)6] | 1 | ||
| Ondrušite | CaCu4(AsO4)2(HAsO4)2·10H2O | 1 | ||
| Oneillite | Na15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2 | 1 | ||
| Opal | SiO2·nH2O | 4 | ||
| Opal-AN | SiO2·nH2O | Opal | 1 | |
| Opal-CT | SiO2·nH2O | Opal | 1 | |
| Orpiment | As2S3 | 1 | ||
| Orthoclase | KAlSi3O8 | 10 | ||
| Orthoserpierite | Ca(Cu,Zn)4(SO4)2(OH)6·3H2O | 1 | ||
| Osmium | (Os,Ir,Ru) | 1 | ||
| Osumilite | (K,Na)(Fe2+,Mg)2(Al,Fe3+)3(Si,Al)12O30 | 3 | ||
| Otavite | CdCO3 | 1 | ||
| Ottensite | (Na,K)3Sb3+6(Sb3+S3)O9·3H2O | 1 | ||
| Ottrélite | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 | 1 | ||
| Oulankaite | (Pd,Pt)5(Cu,Fe)4SnTe2S2 | 1 | ||
| Oxycalciomicrolite | Ca2Ta2O6O | 1 | ||
| Oxykinoshitalite | (Ba,K)(Mg,Ti,Fe3+,Fe2+)3((Si,Al)4O10)(O,OH,F)2 | 1 | ||
| Oxyplumboroméite | 1 | |||
| Oyelite | Ca10Si8B2O29·12.5H2O | 1 |