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Sylvite
Sylvite

Amethyst
Amethyst



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Sylvite
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Amethyst

Sylvite and Amethyst Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Visible in colored crystals
None

Dispersion

0.010.01
0.005 1
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Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.49031.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

-99990.009
0 0.296
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Clarity

-
Transparent

Sylvite and Amethyst Optic Character

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

Sylvite and Amethyst Transparency

Similar to their colors, Sylvite 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, Sylvite is while Sylvite is in appearance.