Amazonite

Amazonite

Refractive Index

1.522 to 1.530

Birefringence

0.008 to 0.010

Dispersion

Weak

Specific Gravity

2.55 to 2.57

Transparency

Translucent to Opaque

Pleochroism

Weak

Fluorescence

Weak; olive-green

Optical Character

Biaxial -

Cleavage Quality

Perfect

Fracture

Uneven,Conchoidal

Lustre

Vitreous

Mohs Hardness

6 to 6.5