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Hessonite
Hessonite

Amethyst
Amethyst



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Hessonite
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Amethyst

Hessonite and Amethyst Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
None

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.742-1.7481.544-1.553
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Hessonite and Amethyst Optic Character

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

Hessonite and Amethyst Transparency

Similar to their colors, Hessonite and Amethyst 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, Hessonite is while Hessonite is in appearance.