Mineral Properties and Identification

Would Quartz scratch the glass plate

• Yes

• No

2. Which mineral has perfect cleavage in three directions ?

• Quartz

• Calcite

• Talc

• Magnetite

Which mineral is known for being the softest on the Mohs scale and feels greasy?

• Calcite

• Magnetite

• Quartz

• Talc

4. What is the streak color of magnetite?

• Red

• Brown

• White

• Black

5. Does fluorite have cleavage? If so, how many directions?

• Yes, in 4 directions

• Yes in 1 direction

• No

• Yes in 3 directions

Is fracture and cleavage the same thing?

• Yes

• No

9. How can you test if a mineral is harder than your fingernail (hardness 2.5)?

• Scratch it on a glass plate

• Scratch it with a penny

• Scratch it with your fingernail.

• You cannot test if a mineral is harder than your fingernail.

8. Which of the following is a key characteristic of hematite?

• White streak

• Metallic luster

• Cleavage in 3 directions

• Greasy texture

10. What is the cleavage of talc?

• Perfect in 3 directions

• Perfect in 1 direction

• No cleavage

• Fracture

11. What does the term "fracture" mean when identifying minerals?

• The mineral breaks into smooth, flat planes

• The mineral breaks into irregular or jagged ways

• The mineral is very hard

• The mineral scratches other object easily