People feel sick after realising where most white sand actually comes from
![People feel sick after realising where most white sand actually comes from](https://i2-prod.mirror.co.uk/incoming/article32513462.ece/ALTERNATES/s615/2_Crowded-Beach-in-Paleokastritsa-Corfu.jpg)
Can't wait to jet off and spend your days sunbathing on a dreamy beach? You may be put off after discovering what white sand is made of, and you can blame marine biologist professor Kory Evans