Materials
- Oak4 objects
- Oak (flywheel)1 objects
- Oak (hoop)1 objects
- Obsidian48,768 objects
- Obsidian (387)1 objects
- Obsidian (casa diablo mountain)1 objects
- Obsidian (percussion flaked)1 objects
- Obsidian (pressure flaked)1 objects
- Ocher (pigment)113 objects
- Ocher (pigment) (mineral)1 objects
- Oil paint (paint)5 objects
- Olivella shell882 objects
- Olivine2 objects
- Onyx (mineral)6 objects
- Onyx (mineral) (striped agate (onyx type))1 objects
- Onyx (mineral) (white onyx)1 objects
- Onyx marble57 objects
- Opal25 objects
- Opal glass27 objects
- Organic1 objects