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Sugilite
Sugilite

Charoite
Charoite



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Sugilite
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Charoite

Sugilite and Charoite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Pearly, Fibrous, Chatoyant
1.2 Pleochroism
Weak
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Translucent
1.5 Refractive Index
1.607-1.6121.545-1.560
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Triclinic
1.8 Birefringence
0.0030.009
Achroite
0 0.296
1.9 Clarity
Translucent
Translucent

Sugilite and Charoite Optic Character

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

Similar to their colors, Sugilite and Charoite 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.