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Caledonite
Caledonite

Sugilite
Sugilite



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Caledonite
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Sugilite

Caledonite and Sugilite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak
Weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.818-1.9091.607-1.612
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.0910.003
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Caledonite and Sugilite Optic Character

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

Caledonite and Sugilite Transparency

Similar to their colors, Caledonite and Sugilite 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, Caledonite is Transparent while Caledonite is Transparent in appearance.