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Schultenite
Schultenite

Alexandrite
Alexandrite



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Schultenite and Alexandrite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Adamantine
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Transparent, Transparent to nearly opaque
1.5 Refractive Index
1.890-1.976
1.739-1.770
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available
0.007-0.010
1.9 Clarity
TransparentAnthony et al
Transparent

Schultenite and Alexandrite Optic Character

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

Schultenite and Alexandrite Transparency

Similar to their colors, Schultenite 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, Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al while Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.