What are quartz mineral samples identified by?

Answer 1

Quartz can be identified by:

1. Luster: nonmetallic

2. Hardness: 7

3. Streak: white

4. Color: usually colorless, white or gray but can be varieties of all colors

5. Cleavage: none

6. Crystal habit: hexagonal prisms and pyramids

7. Specific Gravity: 2.6-2.7

Answer 2

Quartz mineral samples are identified by their distinctive hexagonal crystal structure, hardness of 7 on the Mohs scale, and glassy luster. They also exhibit conchoidal fracture, lack cleavage, and may display various colors depending on impurities present, although clear and colorless varieties are common.

Answer 3

Visually, if crystals are present. The quartz crystal is six sided, terminated with a six sided pyramid.

Answer 4

Their hardness

Answer 5

Hardness