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Pearl
Pearl

Chrysoprase
Chrysoprase



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Pearl and Chrysoprase Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Vitreous, Vitreous, Waxy
1.2 Pleochroism
AbsentWalter Schumann
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque
Translucent, Translucent, Opaque, Translucent to nearly opaque
1.5 Refractive Index
1.52-1.66
1.530-1.543
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.156
0.004
1.9 Clarity
Translucent
Translucent

Pearl and Chrysoprase Optic Character

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

Pearl and Chrysoprase Transparency

Similar to their colors, Pearl 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, Pearl is Opaque and Translucent while Pearl is Opaque and Translucent in appearance.