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Hackmanite
Hackmanite

Pezzottaite
Pezzottaite



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Hackmanite
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Pezzottaite

Hackmanite and Pezzottaite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Moderate dichroic

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.483-1.4871.598-1.620
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Hexagonal

Birefringence

-99990.008-0.011
0 0.296
👆🏻

Clarity

Transparent
Transparent

Hackmanite and Pezzottaite Optic Character

Hackmanite and Pezzottaite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hackmanite and Pezzottaite 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 Pezzottaite 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 Pezzottaite Transparency

Similar to their colors, Hackmanite and Pezzottaite 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.