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Moldavite
Moldavite

Polyhalite
Polyhalite



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Moldavite
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Polyhalite

Moldavite and Polyhalite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

Absent
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.48-1.541.546-1.548
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.021
0 0.296
👆🏻

Clarity

Transparent
-

Moldavite and Polyhalite Optic Character

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

Similar to their colors, Moldavite and Polyhalite 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.