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Chrysoprase
Chrysoprase
☒

Akoya pearl
Akoya pearl
☒



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Chrysoprase
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Akoya pearl

Chrysoprase and Akoya pearl Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Waxy
-
0.01
Translucent, Opaque, Translucent to nearly opaque
1.530-1.543
-
Trigonal
0.004
Translucent
 
-
-
0.16
-
-9999
-
-
-9999
-

Chrysoprase and Akoya pearl Optic Character

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

Chrysoprase and Akoya pearl Transparency

Similar to their colors, Chrysoprase and Akoya pearl 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, Chrysoprase is while Chrysoprase is in appearance.