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Hackmanite
Hackmanite

Lazulite
Lazulite



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Hackmanite
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Lazulite

Hackmanite and Lazulite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli

Dispersion

0.030.01
0.005 1
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Transparency

-
Transparent, Translucent

Refractive Index

1.483-1.4871.604-1.646
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-99990.031-0.036
0 0.296
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Clarity

Transparent
Transparent

Hackmanite and Lazulite Optic Character

Hackmanite and Lazulite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hackmanite and Lazulite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Hackmanite and Lazulite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Hackmanite and Lazulite Transparency

Similar to their colors, Hackmanite and Lazulite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Hackmanite is while Hackmanite is in appearance.