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image, left-mouse click & drag to rotate)
Physical
Properties of Clinopyroxene
Color |
Pale green to
black |
| Luster |
Vitreous |
| Streak |
White or gray
|
| Cleavage |
2 directions,
intersect at nearly 90 degree angles |
| Specific
Gravity |
3.19 - 3.56 |
| Hardness |
5.5 - 6 |
| Distinguishing
Characteristics |
90 degree cleavage,
high specific gravity, dark-green or black color |
Optical
Properties of Clinopyroxene
Color |
Colorless to pale
green or pale brown |
| Pleochroism |
None |
| Relief |
High
positve relief (n = 1.664-1.771) |
| Interference
Colors |
Second order (Birefringence
= 0.018 - 0.034) |
| Opical
System |
Biaxial positive
|
| 2V Angle
|
25-70 degrees
|
| Distinguishing
Characteristics |
Extinction at
45 degrees to polarizers, 90 degree cleavage |
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