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Alexandrite
Alexandrite

Diamond
Diamond



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Alexandrite
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Diamond

Alexandrite and Diamond Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Not Available
None
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to nearly opaque
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.739-1.7702.417-2.419
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic
cubic
1.8 Birefringence
0.007-0.010Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Alexandrite and Diamond Optic Character

Alexandrite and Diamond optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Alexandrite and Diamond 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 Alexandrite and Diamond 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. Alexandrite has Biaxial/+ character.

Alexandrite and Diamond Transparency

Similar to their colors, Alexandrite and Diamond 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, Alexandrite is Transparent and Transparent to nearly opaque while Alexandrite is Transparent and Transparent to nearly opaque in appearance.