1. A naturally occurring inorganic solid with a crystalline structure and definite chemical composition
Quartz is a common mineral found in the Earth's crust.
Quartzo é um mineral comum encontrado na crosta terrestre.
2. An inorganic substance needed by the human body for proper functioning (such as calcium, iron, potassium)
This food is rich in minerals and vitamins.
Este alimento é rico em minerais e vitaminas.
3. A substance obtained from the earth by mining
The country exports valuable minerals like copper and gold.
O país exporta minerais valiosos como cobre e ouro.