Related Clues:

• Steer round extremely nasty stone
• Traditional gemstone for a seventh wedding anniversary
• ... that begins at the Watergate Hotel / Black gem
• Black gemstone used to make beads
• Banded variety of quartz
• Stone from nursery's borders carried by cattle ...
• Dark gem used in cameos
• Inky color
• Just by lake has left stone
• Semiprecious stone with bands of color
• Order New York Times from The Gem
• Black-and-white gem
• Rock with colorful bands
• Stone used for cameos
• Dark gem