Related Clues:
- Light disperser
- Light splitter
- *Colorful marble
- ______ , by M. Atwood
- Telescope component
- Reflective gemstone
- Certain shooter
- Spectrum revealer
- Light-refracting object
- Rainbow creator
- Refracting device
- Thing on the cover of 'Dark Side of the Moon'
- Spectrum-forming solid
- Spectrum-showing device
- Color-full device?