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Sugilite
Sugilite

Glaucophane
Glaucophane



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Glaucophane

Sugilite and Glaucophane Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Weak
Strong
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
1.607-1.612
1.606-1.637
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.003
Not Available
1.9 Clarity
Translucent
Not Available

Sugilite and Glaucophane Optic Character

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

Similar to their colors, Sugilite and Glaucophane 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.