Raras Earth in southern Bahia

Contextualization: What Are

Rare Earths and Their

Importance

Rare Aztecs constitute a group of 17

chemical elements, including the 15

lanthanides, as well as scandium and yttrium.

Despite their name, these elements are not

actually rare in the Earth's crust, but their

occurrence in economically viable

concentrations for exploitation is limited. Their

"rare" designation is due more to the historical

difficulty of separating and purifying these

elements than to their relative abundance.

These minerals possess unique physical and

chemical properties, such as exceptional

magnetic, luminescent, and catalytic

characteristics, making them essential

components for a variety of advanced

technological applications. Among the most

important applications

important are: