| Sample # |
21 |
| Mineral
Name |
CALCITE |
| Chemical Composition |
CaCO3 |
| Luster |
Vitreous |
| Color(s) |
Variable,
usually colorless or white |
| Streak Color |
White |
| Specifc Gravity |
2.7 |
| Habit |
Variable |
| Cleavage/Fracture |
Perfect rhombohedral/Conchoidal |
| Hardness |
3 |
| Diagnostic Feature(s) | React with dilute acid, luster, cleavage, hardness |
