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Baddeleyite and Dravite Optical Properties


Dravite and Baddeleyite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
DistinctArthur Thomas   
Very strong: pale yellow colorless   

Dispersion
Not Available   
0.02   
22

Transparency
Transparent   
Transparent   

Refractive Index
2.13-2.20   
1.614-1.666   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c   
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m   

Birefringence
0.07   
0.014-0.032   

Clarity
Transparent   
Transparent   

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Baddeleyite and Dravite Optic Character

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

Similar to their colors, Baddeleyite 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, Baddeleyite is Transparent while Baddeleyite is Transparent in appearance.

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