| Sample # |
5 |
| Mineral
Name |
QUARTZ |
| Chemical Composition |
SiO2 |
| Luster |
Vitreous |
| Color(s) |
Variable (clear, milky, white purple, smokey, pink) |
| Streak Color |
None |
| Specifc Gravity |
2.7 |
| Habit |
Prismatic |
| Cleavage/Fracture |
None/ conchoidal |
| Hardness |
7 |
| Diagnostic Feature(s) | Conchoidal
fracture, scratches glass |
