1. What is considered to be the hardest mineral?

a. Topaz b. talc c. gypsum d. diamond

2. The following are lustrous, except .

a. Chalk b. copper c. gold d. silver

3. The color of the streak is not always the same as the color of the mineral.

a. True b. false c. neither true or false d. cannot be determined

4. Every material has its own way of reflecting light.

a. True b. false c. neither true or false d. cannot be determined5. Who proposed the hardness scale?

a. Alexander Flemming c. Friedrich Moh

b. Charles Darwin d. None of the above

6. The following are the characteristics of minerals, except .

a. Solid b. has definite chemical composition c. Inorganic d. Soluble

7. The following are the most prized gems, except:

a. Opal b. diamond c. amethyst d. talc

8. Bubbles may form when acid is used on some minerals.

a. True b. falsec. Neither d. cannot be determined

9. What property of a mineral which has a resistance to scratching?

a. Luster b. color c. streak d. hardness

10. It refers to the tendency of certain mineral to break along one or more planes when

put under pressure.

a. Streak b. Luster c. Fracture d. Cleavage​