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Amber
Amber

Thulite
Thulite



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Amber
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Thulite

Amber and Thulite Optical Properties

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Optical Properties

Luster

Resinous
Vitreous

Pleochroism

-
Present

Dispersion

0.010.02
0.005 1
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Transparency

Transparent, Translucent
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.539-1.5451.695
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.006-0.018
0 0.296
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Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Amber and Thulite Optic Character

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

Amber and Thulite Transparency

Similar to their colors, Amber and Thulite 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, Amber is Transparent and Translucent while Amber is Transparent and Translucent in appearance.