Related Clues:

• Birthstone for some
• "Fire" stone
• Precious thing
• Stone made of hydrated silica
• A birthstone
• It's a form of hydrated silica
• Stranded item
• Cultured gem
• June's gem
• Outback gem
• Wisdom unit
• Hester's daughter
• Stone for many a Libra
• Play-of-color gem
• Libran birthstone