Optical Properties of Vivianite

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
1.2 Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
1.5 Refractive Index
1.6 Optic Character
Not Available
1.7 Crystal System
Not Available
1.8 Birefringence
1.9 Clarity

Vivianite Luster

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

Vivianite luster is the quantity of light the crystal reflects when light is incident on it. Vivianite which is commonly found in Blue, Green, Colorless color, is Transparent in nature. It possess Pearly and Vitreous luster.

Vivianite Refractive Index

Optical properties of a Vivianite 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 Vivianite.

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 Vivianite refractive index is 1.560-1.640. Birefringence value for this gem is 0.054-0.075. So if you are searching for prominent Blue Gemstones, Vivianite gem is something not miss on, since it has been a favorite pick in the gem wearing community.