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Vanadinite
Vanadinite

Phenakite
Phenakite



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Vanadinite
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Phenakite

Vanadinite and Phenakite Optical Properties

Optical Properties

Luster

Resinous
Vitreous

Pleochroism

-
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli

Dispersion

0.150.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.4161.650-1.695
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Trigonal

Birefringence

0.0660.016
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Vanadinite and Phenakite Optic Character

Vanadinite and Phenakite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Vanadinite and Phenakite 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 Vanadinite and Phenakite 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.

Vanadinite and Phenakite Transparency

Similar to their colors, Vanadinite and Phenakite 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, Vanadinite is while Vanadinite is in appearance.