Agate
Refractive Index |
1.530 to 1.543 |
Birefringence |
0.004 |
Optical Character |
Uniaxial + |
Mohs Hardness |
6.5 to 7 |
Specific Gravity |
2.60 to 2.64 |
Pleochroism |
None |
Cleavage Quality |
None |
Fracture |
Uneven |
Lustre |
Waxy |
Transparency |
Translucent to Opaque |
Dispersion |
None |