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Pearl
Pearl

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Emerald



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Pearl and Emerald Optical Properties

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1 Optical Properties
1.1 Luster
Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Strong dichroism: yellow green Lazzarelli
1.3 Dispersion
Albite Optical ..
None
Rank: N/A (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent, Opaque
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.52-1.66
1.565-1.602
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Hexagonal
1.8 Birefringence
0.156
0.0040-0.0070
1.9 Clarity
Translucent
Color grading system

Pearl and Emerald Optic Character

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

Similar to their colors, Pearl and Emerald 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.