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Amazonite and Lawsonite Optical Properties


Lawsonite and Amazonite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Greasy   

Pleochroism
WeakMichael O’Donoghue   
Weak   

Dispersion
Not Available   
Not Available   

Transparency
Translucent, Translucent to opaque   
Not Available   

Refractive Index
1.522-1.530   
1.672-1.676   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic   
Orthorhombic   

Birefringence
0.008-0.010   
0.019-0.021   

Clarity
Translucent   
Not Available   

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Amazonite and Lawsonite Optic Character

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

Similar to their colors, Amazonite and Lawsonite 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, Amazonite is Translucent and Translucent to opaque while Amazonite is Translucent and Translucent to opaque in appearance.

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