Stones/Gems with O
- Obsidian
- Ore
- Oro
- Olive
- Ores
- Opaque
- orange calcite
- Olivine
- Oracle
- Opale
- Opalo
- ONYX
- Osmium
- Old
- Oxford
- Oynx
- octopus
- One
- oak
- One stone
- obisdian
- Olivia
- Obsidion
- Orange sapphire
- Orchid
- Oval stone
- Orange Stone
- ornament
- obsidiana
- Obsydian
- Obsedian
- oval diamond
- Ople
- Orichalcum
The words in the list Stones/Gems with O come from players of the word game Categories game.