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Chrysoberyl and Lepidocrocite Optical Properties


Lepidocrocite and Chrysoberyl Optical Properties


Optical Properties

Luster
Vitreous  
-  

Pleochroism
X = red; Y = yellow-orange; Z = emerald-green  
Strong; X = colorless to yellow; Y = orange  

Dispersion
0.02  
99+
0.02  
99+

Transparency
Transparent, Translucent, Transparent to translucent  
-  

Refractive Index
1.746-1.763  
1.940  

Optic Character
Biaxial/+  
-  

Crystal System
Orthorhombic  
Orthorhombic  

Birefringence
0.007-0.013  
-9999  

Clarity
Transparent  
-  

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Chrysoberyl and Lepidocrocite Optic Character

Chrysoberyl and Lepidocrocite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysoberyl and Lepidocrocite 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 Chrysoberyl and Lepidocrocite 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. Chrysoberyl has Biaxial/+ character.

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Chrysoberyl and Lepidocrocite Transparency

Similar to their colors, Chrysoberyl and Lepidocrocite 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, Chrysoberyl is Transparent, Translucent and Transparent to translucent while Chrysoberyl is Transparent, Translucent and Transparent to translucent in appearance.

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