Activity 2: Properties of Minerals

Directions: Choose from the box the rock-forming minerals being described below. Write your answer in the space provided.

- quartz
- feldspar
- pyroxene
- talc
- dolomite

1. A silicate mineral that occurs in different colors but has a colorless streak. Its Moh's hardness is 7 and it is used in glass making.
__________

2. A silicate mineral with a Mohs hardness of 1 and can be crushed into a white powder.
__________

3. A mineral that is usually white, pink, gray, or brown in color but has a white streak.
__________

4. A silicate mineral and a raw material for ceramic and plastic products.
__________

5. A dark-colored mineral with a white streak and Moh's hardness of 5 to 7.
__________

6. A calcium magnesium carbonate with colorless, white, pink, green, gray, and brown colors and a white streak. It is used for cement manufacture.
__________