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Morganite
Morganite

Tortoiseshell
Tortoiseshell



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Morganite
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Tortoiseshell

Morganite and Tortoiseshell Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
-

Refractive Index

1.573-1.6001.540-1.560
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.005-0.009-9999
0 0.296
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Clarity

Transparent to translucent
OpaqueUlrich Henn and Claudio C. Milisenda

Morganite and Tortoiseshell Optic Character

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

Morganite and Tortoiseshell Transparency

Similar to their colors, Morganite and Tortoiseshell 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, Morganite is Transparent, Translucent and Transparent to translucent while Morganite is Transparent, Translucent and Transparent to translucent in appearance.