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Blue John
Blue John

Tinzenite
Tinzenite



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Blue John
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Tinzenite

Blue John and Tinzenite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
In thick sections

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

1.432-1.4361.690-1.705
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Blue John and Tinzenite Optic Character

Blue John and Tinzenite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Blue John and Tinzenite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Blue John and Tinzenite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Blue John and Tinzenite Transparency

Similar to their colors, Blue John and Tinzenite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Blue John is Transparent while Blue John is Transparent in appearance.