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(select an
image, left-mouse click & drag to rotate)
Physical
Properties of Muscovite
Color |
Clear to Gray,
|
| Luster |
Non-Metallic,
Vitreous to Pearly |
| Streak |
White |
| Cleavage |
1 direction, perfect
|
| Specific
Gravity |
2.77-2.88 |
| Hardness |
2.5 (on cleavage
faces), 4 (90 degrees to cleavage) |
| Distinguishing
Characteristics |
Perfect mica cleavage
light color |
Optical
Properties of Muscovite
Color |
Colorless |
| Pleochroism |
None |
| Relief |
Moderate positve
relief (n = 1.552-1.618) |
| Interference
Colors |
High, thrid order
colors (Birefringence = 0.036 - 0.049) |
| Opical
System |
Biaxial negative |
| 2V Angle
|
2.77 - 2.88 |
| Distinguishing
Characteristics |
perfect cleavage,
colorless, moderate releif, and high-birefringence |
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