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Beryl
Beryl

Chrysoprase
Chrysoprase



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Beryl
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Chrysoprase

Beryl and Chrysoprase Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
Weak to distinct
0.01
Transparent, Transparent to opaque
1.560-1.604
-
Hexagonal
0.0040-0.0070
Transparent
 
Vitreous, Waxy
-
0.01
Translucent, Opaque, Translucent to nearly opaque
1.530-1.543
-
Trigonal
0.004
Translucent

Beryl and Chrysoprase Optic Character

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

Beryl and Chrysoprase Transparency

Similar to their colors, Beryl 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, Beryl is while Beryl is in appearance.