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Dravite and Chromite Optical Properties


Chromite and Dravite Optical Properties


Optical Properties

Luster
Vitreous  
-  

Pleochroism
Very strong: pale yellow colorless  
none.  

Dispersion
0.02  
99+
0.04  
39

Transparency
Transparent  
-  

Refractive Index
1.614-1.666  
2.08-2.16  

Optic Character
-  
-  

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

Birefringence
0.014-0.032  
-9999  

Clarity
Transparent  
-  

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Dravite and Chromite Optic Character

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

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

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