Optical Properties of Tantalite

Tantalite

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1 Optical Properties

1.1 Luster

Resinous

1.2 Pleochroism

Not Available

1.3 Dispersion

Not Available

Rank: N/A (Overall) ▶

0.007 1

1.4 Transparency

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

1.5 Refractive Index

2.190-2.457

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.083

0 0.296

1.9 Clarity

TransparentWalter Schumann

Tantalite Luster

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

Tantalite luster is the quantity of light the crystal reflects when light is incident on it. Tantalite which is commonly found in Brown color, is TransparentWalter Schumann and Gemstones of the world (2001) More from other references in nature. It possess Resinous luster.

Brown Gemstones

Tantalite Refractive Index

Optical properties of a Tantalite 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 Tantalite.

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 Tantalite refractive index is 2.190-2.457. Birefringence value for this gem is 0.083. So if you are searching for prominent Brown Gemstones, Tantalite gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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