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Amethyst
Amethyst

Tremolite
Tremolite



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Amethyst
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Tremolite

Amethyst and Tremolite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Silky

Pleochroism

None
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Transparent to translucent
Transparent

Refractive Index

1.544-1.5531.599-1.637
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.0090.023-0.028
0 0.296
👆🏻

Clarity

Transparent
Transparent

Amethyst and Tremolite Optic Character

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

Amethyst and Tremolite Transparency

Similar to their colors, Amethyst and Tremolite 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, Amethyst is Transparent and Transparent to translucent while Amethyst is Transparent and Transparent to translucent in appearance.