Answer: Luster
A mineral is a naturally occurring inorganic compound, which have definite chemical and physical properties. It form as a result of geological process. Luster is the physical property of mineral that refers to the reflection of light by the mineral surface. The luster of a mineral is dependent upon the surface area of mineral and the type of incident light on mineral. Metallic minerals show more luster that is more reflection of light than non-metallic minerals. More intense the incident light more will be the reflection.
