Glossary Term
Luster
Definition
The way light reflects from the surface of a mineral. Common types include metallic, vitreous (glassy), pearly, silky, and dull.
Example
Pyrite has a metallic luster, while quartz has a vitreous (glassy) luster.
The way light reflects from the surface of a mineral. Common types include metallic, vitreous (glassy), pearly, silky, and dull.
Pyrite has a metallic luster, while quartz has a vitreous (glassy) luster.