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Confidence votes 95.7K. A sand tornado is not truly a tornado. It is a phenomenon called a dust devil. Dust devils are whirlwinds that form when a layer of hot air forms just above the ground and rises in a relatively small, rotating column, picking up up dust or sand as it does so. Dust devils are rarely strong enough to cause damage, and are much weaker than tornadoes.
A sand island is an island that is largely or completely made of sand. The largest sand island in the world is Fraser Island. Other examples of large sand islands are Moreton and North Stradbroke Islands which lie south of Fraser Island off the east coast of Australia..http://en.wikipedia.org/wiki/Sand_island. See it here in Living Color! sand island is an island that is largely or completely made of sand. The largest sand island in the world is Fraser Island. Other examples of large sand islands are Moreton and North Stradbroke Islands which lie south of Fraser Island off the east coast of Australia.. http://en.wikipedia.org/wiki/Sand_island.