Oddly enough, Saudi Arabia imports Gulf of Mexico sand because Saudi sand is unsuitable as a filtration material for swimming pools, etc...
There are some types of sand - specifically that beautiful white sand prized by beachgoers- that are created by parrotfish as they eat coral and the stuff growing on it:
https://en.wikipedia.org/wiki/Parrotfish
All that lovely white sand that supports bikini clad women had to pass through the teeth and digestive tracts of generations of colorful parrotfish.
The Parrot Fish—A Sand-Making Machine?https://www.jw.org/en/publications/magazines/g201506/parrot-fish-facts-sand-maker/
Our sand is white quartz, not chopped up coral fish poop............