Labradorite Cabs Round 12mm

Labradorite often has metallic blue and green streaks which is often caused by interference of light from lattice distortions resulting from alternating microscopic. They are found in Canada, Australia, Madagascar, Mexico, Russia and the United States of America. 

Shape: Round

Size: 12x5mm

Weight: 1.15g

Colour: Brown, black and green streaks

Moh's hardness: 6 - 6½ 

Density: 2.65 - 2.75

Cleavage: Perfect

Refractive index: 1.559 - 1.570

Dispersion: 0.019 (0.010)