Using sand made from dolomite rock in such a project is highly uncommon, experts say. The large majority of sand beaches worldwide are made up of quartz and feldspar, while dolomite sand is commonly used in road construction.

What kind of material is dolomite?

Dolomite is a type of limestone. It is rich in magnesium and calcium carbonate. It also has smaller amounts of several other minerals.

Why dolomite sand is bad?

Aside from the environmental impact, the UP MSI said that the finer particles of dolomite can be “problematic”— with prolonged dust inhalation seen to cause chronic health effects to the public. These risks include discomfort in the chest, shortness of breath, and coughing.