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Grandidierite and Lehsunia Optical Properties


Lehsunia and Grandidierite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
visible   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Not Available   

Refractive Index
1.578-1.639   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Not Available   

Birefringence
0.037-0.039   
Not Available   

Clarity
Gemmological Tables (2004) More from other references   
Not Available   

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Grandidierite and Lehsunia Optic Character

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

Similar to their colors, Grandidierite and Lehsunia 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, Grandidierite is Gemmological Tables (2004) More from other references while Grandidierite is Gemmological Tables (2004) More from other references in appearance.

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