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Benitoite and Jeremejevite Optical Properties


Jeremejevite and Benitoite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
O = colorless; E = purple   
Colorless   

Dispersion
0.04   
11
Not Available   

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.757-1.804   
1.638-1.650   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Hexagonal   

Birefringence
0.047   
0.0130   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Benitoite and Jeremejevite Optic Character

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

Similar to their colors, Benitoite and Jeremejevite 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, Benitoite is Transparent while Benitoite is Transparent in appearance.

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