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Lazurite
Lazurite

Eosphorite
Eosphorite



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X
Lazurite
X
Eosphorite

Lazurite and Eosphorite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

-
Visible: X = yellow; Y = pink; Z = pale pink to colorless

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.5001.639-1.672
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

-99990.029-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Lazurite and Eosphorite Optic Character

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

Lazurite and Eosphorite Transparency

Similar to their colors, Lazurite and Eosphorite 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, Lazurite is while Lazurite is in appearance.