Question

When you observe the shine of a mineral sample, which property are you measuring?

A.cleavage
B.luster
C.streak
D.color

Answer 1

Luster because mentally when you knock of the other awnsers it’s luster

Answer 2

The answer is Luster

The definition of "Luster" in Science is used to describe how mineral surfaces reflect light. (Ex:Dull/Shiny)