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Cryolite
Cryolite

Titanite
Titanite



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Cryolite
X
Titanite

Cryolite and Titanite Optical Properties

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Optical Properties

Luster

Vitreous, Greasy, Pearly
Subadamantine, Resinous

Pleochroism

colorless.
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange

Dispersion

0.010.05
0.005 1
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Transparency

-
-

Refractive Index

1.338-1.3391.885-1.990
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.0010.105-0.135
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Cryolite and Titanite Optic Character

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

Similar to their colors, Cryolite and Titanite 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.