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Benitoite
Benitoite

Chrysoprase
Chrysoprase



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Benitoite
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Chrysoprase

Benitoite and Chrysoprase 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, Waxy
-
0.01
Translucent, Opaque, Translucent to nearly opaque
1.530-1.543
-
Trigonal
0.004
Translucent

Benitoite and Chrysoprase Optic Character

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

Similar to their colors, Benitoite and Chrysoprase 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.