Optical Properties of Schorl

Schorl

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Very strong: yellow-brown pale yellow

1.3 Dispersion

Not Available

Rank: N/A (Overall) ▶

0.007 1

1.4 Transparency

Transparent, Translucent

1.5 Refractive Index

1.635-1.672

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.025

0 0.296

1.9 Clarity

Transparent

Schorl Luster

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

Schorl luster is the quantity of light the crystal reflects when light is incident on it. Schorl which is commonly found in Black, Brownish, Greenish color, is Translucent and Transparent in nature. It possess Vitreous luster.

Black Gemstones

Schorl Refractive Index

Optical properties of a Schorl 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 Schorl.

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 Schorl refractive index is 1.635-1.672. Birefringence value for this gem is 0.025. So if you are searching for prominent Black Gemstones, Schorl gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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