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Eosphorite
Eosphorite

Cryolite
Cryolite



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Eosphorite
X
Cryolite

Eosphorite and Cryolite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Greasy, Pearly

Pleochroism

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

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.639-1.6721.338-1.339
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.029-0.0320.001
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Eosphorite and Cryolite Optic Character

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

Eosphorite and Cryolite Transparency

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