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Amber and Dravite Optical Properties


Dravite and Amber Optical Properties


Optical Properties

Luster
Resinous   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Very strong: pale yellow colorless   

Dispersion
Not Available   
0.02   
22

Transparency
Transparent, Translucent   
Transparent   

Refractive Index
1.539-1.545   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m   

Birefringence
Not Available   
0.014-0.032   

Clarity
Transparent   
Transparent   

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Amber and Dravite Optic Character

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

Amber and Dravite Transparency

Similar to their colors, Amber and Dravite 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, Amber is Translucent and Transparent while Amber is Translucent and Transparent in appearance.

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