| Sample # |
25 |
| Mineral
Name |
GRAPHITE |
| Chemical Composition |
C |
| Luster |
Metallic
to dull |
| Color(s) |
Black
to dark grey |
| Streak Color |
Black to dark grey |
| Specifc Gravity |
2.5 |
| Habit |
Massive,
tabular |
| Cleavage/Fracture |
Basal, perfect |
| Hardness |
1 |
| Diagnostic Feature(s) | Greasy
feel, soils paper and fingers, hardness, luster, color |