Related Clues:

• Shooter's target
• Relative of an agate
• Playing marble
• Pretty marble
• Marble with concentric circles
• Ringed marble
• Colorful marble
• Gem with a changing luster
• Certain marble
• Colorful playing marble
• Lustrous gem
• Marble type
• Semi-precious stone
• Light reflector
• ______ , by M. Atwood