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Sugilite
Sugilite

Anglesite
Anglesite



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Sugilite
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Anglesite

Sugilite and Anglesite Optical Properties

Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

Weak
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.607-1.6121.877-1.894
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic

Birefringence

0.0030.017
0 0.296
👆🏻

Clarity

Translucent
Transparent

Sugilite and Anglesite Optic Character

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

Similar to their colors, Sugilite and Anglesite 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.