Related Clues:

• Common name for hydrous silica
• Gemstone from Down Under
• Precious stone
• Scorpio stone
• October birthstone
• Hydrophane, e.g.
• October's jewel
• Australian gemstone
• October stone
• Unfaceted gem
• Semiprecious stone
• It's formed from silica
• Jewelry gem
• Solitaire stone
• Gem