Optical Properties of Zoisite

Zoisite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

1.3 Dispersion

0.02

Rank: 19 (Overall) ▶

0.007 1

1.4 Transparency

Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

1.5 Refractive Index

1.685-1.707

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.006-0.018

0 0.296

1.9 Clarity

Transparent

Zoisite Luster

Optical Properties of Zoisite 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. Zoisite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.

Zoisite luster is the quantity of light the crystal reflects when light is incident on it. Zoisite which is commonly found in Brown, gray, Green, Blue, rose, Red color, is Opaque . May be translucent in thin backlit sections., Translucent and Transparent in nature. It possess Vitreous luster.

Brown Gemstones

Zoisite Refractive Index

Optical properties of a Zoisite 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 Zoisite.

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 Zoisite refractive index is 1.685-1.707. Birefringence value for this gem is 0.006-0.018. So if you are searching for prominent Brown Gemstones, Zoisite gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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