36 clues for "OPAL":
- Gem.
- Gem stone
- Milky gem
- October birthstone.
- Semiprecious stone.
- An October birthstone
- Birthstone.
- Birthstone for October
- Cacholong
- Colorful gem.
- Fiery gem
- Fire ___.
- Form of silica
- Geyserite.
- Girasol
- Glassy silica
- Hyalite.
- Iridescent gem.
- Iridescent stone
- Milky white gem.
- October's gem
- October stone.
- Precious stone
- Relative of a cat's-eye.
- Ring stone.
- Translucent silica.
- Colorful mineral
- *Down Under gem
- "Fiery" gemstone
- Fire gem
- Milky stone.
- October's birthstone.
- October's stone.
- Siliceous gem.
- Stone.
- Variegated stone.