Optical Properties of Topaz

Topaz

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak

1.3 Dispersion

Albite Optical ..

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0.01

Rank: 26 (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent

1.5 Refractive Index

1.606-1.644

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.008-0.011

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Topaz Luster

Optical Properties of Topaz are its behavioral responses towards light. While few optical properties can be identified with naked eyes, other require special instruments by the gemologists to identify them. Topaz optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.

Topaz luster is the quantity of light the crystal reflects when light is incident on it. Topaz which is commonly found in Yellow, Blue, Green, Red, White, Colorless, Blue, Red, Green, Yellow, pink, Brown color, is Transparent in nature. It possess Vitreous luster.

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Topaz Refractive Index

Optical properties of a Topaz crystal are responsive to the small changes in composition and strain within its crystalline structure. Absolute diligence is therefore necessary during cutting and polishing of the gemstone. All such optical properties are majorly influenced by Physical Properties of Topaz.

As we are well aware, refractive index is the phenomenon which is related to bending of light through a medium (crystal). It is used in qualitative analysis of gemstones by gemologists Besides, few gemstones exhibit property of dual refractive indices. This dual nature is known as Birefringence. The value of Topaz refractive index is 1.606-1.644. Birefringence value for this gem is 0.008-0.011. So if you are searching for prominent Gems for Sagittarius, Topaz gem is something not miss on, since it has been a favorite pick in the gem wearing community.