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Cryolite
Cryolite

Magnesite
Magnesite



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Cryolite
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Magnesite

Cryolite and Magnesite Optical Properties

Optical Properties

Luster

Vitreous, Greasy, Pearly
Vitreous

Pleochroism

colorless.
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.338-1.3391.509-1.720
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0010.191
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Cryolite and Magnesite Optic Character

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

Cryolite and Magnesite Transparency

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