This is Siesta Key Beach, consistently ranked among the prettiest in the country. While other beaches are made mostly of pulverized coral, Siesta Key is made up of crushed what?

The sand at Siesta Key is made of 99% crushed quartz, which makes the sand whiter and softer. Most of the quartz comes from the Appalachian Mountains and makes its way to Florida. Because quartz is a crystal, it actually disperses the heat from the sun and leaves Siesta Key beaches cool to the touch.

Asked by Tom Cohen · Last updated 5 years ago · 1.2K views