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Bayldonite
Bayldonite

Alexandrite
Alexandrite



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Bayldonite
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Alexandrite

Bayldonite and Alexandrite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Resinous
-
0.03
-
-9999
-
monoclinic
-9999
-
 
Vitreous
-
0.02
Transparent, Transparent to nearly opaque
1.739-1.770
Biaxial/+
Orthorhombic
0.007-0.010
Transparent

Bayldonite and Alexandrite Optic Character

Bayldonite and Alexandrite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Bayldonite Vs Alexandrite 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 Bayldonite and Alexandrite 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.

Bayldonite and Alexandrite Transparency

Similar to their colors, Bayldonite and Alexandrite 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, Bayldonite is while Bayldonite is in appearance.