1.Which of the following properties is generally the least useful in identifying minerals?
a)hardness b)streak c)cleavage d)color
2.The appearance or quality of light reflected from the surface of a mineral is called
a)streak b)color c)cleavage d)luster
3.The resistance of a mineral to being scratched is called
a)streak b)fracture c)hardness d) cleavage
4. The color of the powdered form of a mineral is called
a)cleavage b) streak c)luster d)fracture