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Alexandrite
Alexandrite

Clinochlore
Clinochlore



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Alexandrite
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Clinochlore

Alexandrite and Clinochlore Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly, Greasy
1.2 Pleochroism
Not Available
Distinct: light yellow-green to light bluE
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to nearly opaque
Transparent
1.5 Refractive Index
1.739-1.7701.571-1.597
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Biaxial/+
1.7 Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
0.007-0.010Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Alexandrite and Clinochlore Optic Character

Alexandrite and Clinochlore optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Alexandrite and Clinochlore 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 Alexandrite and Clinochlore 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. Alexandrite has Biaxial/+ character.Clinochlore has Biaxial/+ character.

Alexandrite and Clinochlore Transparency

Similar to their colors, Alexandrite and Clinochlore 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, Alexandrite is Transparent and Transparent to nearly opaque while Alexandrite is Transparent and Transparent to nearly opaque in appearance.