Related Clues:

• Tortoise's home
• Very fine grains of rock, as on beach
• Protective outer casing
• Grains by the sea
• Use abrasive on
• Hourglass trickler
• Turtle covering
• Magazine article for oil company?
• Grains at the shore
• Beach feature
• Taco exterior
• Yellow-and-red gas station symbol
• Castle material
• Type of castle
• Beach castle material