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Moldavite
Moldavite

Sapphire
Sapphire



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Moldavite
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Sapphire

Moldavite and Sapphire Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

Absent
Strong

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.48-1.541.762-1.788
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.008-0.009
0 0.296
👆🏻

Clarity

Transparent
Transparent

Moldavite and Sapphire Optic Character

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

Moldavite and Sapphire Transparency

Similar to their colors, Moldavite and Sapphire 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, Moldavite is Transparent and Translucent while Moldavite is Transparent and Translucent in appearance.