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Baddeleyite and Poudretteite Optical Properties


Poudretteite and Baddeleyite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous   

Pleochroism
DistinctArthur Thomas   
Colorless   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
2.13-2.20   
1.511-1.532   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/c   
Hexagonal   

Birefringence
0.07   
0.021   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Baddeleyite and Poudretteite Optic Character

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

Similar to their colors, Baddeleyite and Poudretteite 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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