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Sugilite
Sugilite

Monazite
Monazite



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Sugilite
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Monazite

Sugilite and Monazite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.607-1.6121.796-1.841
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.0030.045
0 0.296
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Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Sugilite and Monazite Optic Character

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

Sugilite and Monazite Transparency

Similar to their colors, Sugilite and Monazite 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, Sugilite is Translucent while Sugilite is Translucent in appearance.