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Coral and Lepidolite Optical Properties


Lepidolite and Coral Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Pearly   

Pleochroism
AbsentWalter Schumann   
X = almost colorless; Y = Z = pink   

Dispersion
None   
Not Available   

Transparency
Translucent   
Transparent   

Refractive Index
1.486-1.658   
1.525-1.587   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Triclinic   

Birefringence
0.160-0.172   
0.0290-0.0380   

Clarity
Translucent   
Transparent   

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Coral and Lepidolite Optic Character

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

Similar to their colors, Coral and Lepidolite 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, Coral is Translucent while Coral is Translucent in appearance.

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