Related Clues:

• A May birthstone
• Type size for fine print
• Type of quartz
• May birthstone, once
• Playing marble with bands
• A fine playing marble
• Mortar/pestle material
• Cousin of a cat's-eye
• Marble variety
• Rather small type
• Makeup of some mortars and pestles
• Ornamental quartz
• Striped gem
• Striped marble
• Fine print size