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Chrysoprase
Chrysoprase

Alabaster
Alabaster



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Chrysoprase
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Alabaster

Chrysoprase and Alabaster 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
 
-
-
-
Translucent
1.520-1.530
-
-
0.010
Translucent

Chrysoprase and Alabaster Optic Character

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

Similar to their colors, Chrysoprase and Alabaster 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.