Morganite and Topaz Optical Properties

Morganite

Topaz

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Optical Properties

Luster

Vitreous

Pleochroism

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

Weak

Dispersion

0.010.01

0.005 1

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Transparency

Transparent, Translucent, Transparent to translucent

Transparent

Refractive Index

1.573-1.6001.606-1.644

1 3.25

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Optic Character

Crystal System

Hexagonal

Orthorhombic

Birefringence

0.005-0.0090.008-0.011

0 0.296

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Clarity

Transparent to translucent

TransparentUlrich Henn and Claudio C. Milisenda

Morganite and Topaz Optic Character

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

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Morganite and Topaz Transparency

Similar to their colors, Morganite and Topaz 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.