mineraldust

2. Fine particles of minerals produced by mining or crushing rock.

Workers wore masks to avoid breathing in the mineral dust from the quarry.

3. Dust made of tiny mineral grains that can affect air quality and climate.

Satellite images showed mineral dust blowing across the ocean from the desert.

4. A powdery mineral residue left on surfaces after water evaporates.

A ring of mineral dust marked where the puddle had dried up.