Related Clues:

• Precious stone - American hummingbird
• Milky white gemstone
• Gemstone mineral
• Type of gem
• Semi-transparent gem
• Silicate gemstone
• White/colourless mineral used as a gemstone
• White or colourless gemstone
• Mineral used as a gemstone, of hydrated silica
• Word with "fire" or "harlequin"
• Precious stone — dark yellow colour
• "Fiery" gemstone
• Birthstone for most Scorpios
• Jeweler's mineraloid
• The Olympic Australis, e.g