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Benitoite
Benitoite

Aquamarine
Aquamarine



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Benitoite
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Aquamarine

Benitoite and Aquamarine Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
O = colorless; E = purple
0.04
Transparent
1.757-1.804
-
Hexagonal
0.047
Transparent
 
Vitreous
-
0.01
Transparent, Translucent, Transparent to translucent
1.570-1.592
-
Hexagonal
0.005-0.009
Transparent to translucent

Benitoite and Aquamarine Optic Character

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

Benitoite and Aquamarine Transparency

Similar to their colors, Benitoite and Aquamarine 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, Benitoite is while Benitoite is in appearance.