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Optical Properties of Bastnasite



Optical Properties
0

Luster
Vitreous, Greasy, Pearly 0

Pleochroism
Faint 0

Dispersion
Not Available 0

Transparency
Gemmological Tables (2004) More from other references 0

Refractive Index
1.717-1.722 0

Optic Character
Not Available 0

Crystal System
Hexagonal 0

Birefringence
0.100 0

Clarity
TransparentUlrich Henn and Claudio C. Milisenda 0

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<< Physical Properties

Bastnasite Luster

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

Bastnasite luster is the quantity of light the crystal reflects when light is incident on it. Bastnasite which is commonly found in Reddish, Brown color, is Gemmological Tables (2004) More from other references in nature. It possess Greasy, Pearly and Vitreous luster.

Red Gemstones

Bastnasite Refractive Index

Optical properties of a Bastnasite 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 Bastnasite.

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 Bastnasite refractive index is 1.717-1.722. Birefringence value for this gem is 0.100. So if you are searching for prominent Red Gemstones, Bastnasite gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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Red Gemstones


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