PETROGRAPHIC CHARACTERISTICS
OF MINERALS/FIBERS
MATERIAL NAME |
|
HABIT |
|
COLOR AND PLEOCHROISM |
|
APPROXIMATE
R.I. VALUE |
1.33 1.55 1.68 |
INTERFERENCE COLORS | None Low Moderate High |
EXTINCTION | Parallel Inclined: Angle = |
ADDITIONAL DESCRIPTIVE FEATURES |
|
KEY DIAGNOSTIC FEATURES |