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Datolite and Labradorite Optical Properties


Labradorite and Datolite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
NilArthur Thomas   
From the Congo   

Dispersion
0.02   
23
0.01   
28

Transparency
Transparent   
Transparent, Translucent, Transparent to translucent   

Refractive Index
1.621-1.675   
1.554-1.573   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Triclinic   

Birefringence
0.044   
0.008-0.010   

Clarity
Transparent   
Transparent   

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Datolite and Labradorite Optic Character

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

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Datolite and Labradorite Transparency

Similar to their colors, Datolite and Labradorite 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, Datolite is Transparent while Datolite is Transparent in appearance.

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