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Fire Agate and Dravite Optical Properties


Dravite and Fire Agate Optical Properties


Optical Properties

Luster
Waxy, Vitreous, Greasy, Silky  
Vitreous  

Pleochroism
-  
Very strong: pale yellow colorless  

Dispersion
0.01  
99+
0.02  
99+

Transparency
Translucent  
Transparent  

Refractive Index
1.530-1.543  
1.614-1.666  

Optic Character
-  
-  

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

Birefringence
0.003-0.009  
0.014-0.032  

Clarity
Translucent  
Transparent  

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Fire Agate and Dravite Optic Character

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

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Fire Agate and Dravite Transparency

Similar to their colors, Fire Agate 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, Fire Agate is Translucent while Fire Agate is Translucent in appearance.

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Brown Gemstones


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