Related Clues:

• Gemstone in a cameo role?
• 16-Down's birthstone
• It makes cameo appearances
• Rap group with the 1992 hit 'Slam'
• Birthstone before topaz
• Jet-black stone
• Stone
• October's gemstone
• Silica mineral
• Variety of agate
• Fire __
• Certain jewelry stone
• Birthstone of someone born on Halloween
• Gem usually finished en cabochon
• Multicolored gemstone