Related Clues:

• Stone cross east of old American city
• Agate with different bands of colour
• Stone axes one cut in advance
• Semi-precious variety of agate
• Jet-black gemstone
• Material used in many high-end chess sets
• Black cameo stone
• Old state that's unknown for a form of agate
• Stone seen in ring - there's nothing to be said
• A semi-precious agate
• Gemstone given with love and New Year's kiss
• Stone axes found with stripped bone
• Form of chalcedony
• Stone axes: a small number turned up
• Dark rock