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Watermelon Tourmaline
Watermelon Tourmaline

Alexandrite
Alexandrite



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Watermelon Tourmaline
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Alexandrite

Watermelon Tourmaline and Alexandrite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
Transparent, Transparent to nearly opaque
1.5 Refractive Index
1.614-1.666
1.739-1.770
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
0.014-0.040
0.007-0.010
1.9 Clarity
TransparentGemdat.org
Transparent

Watermelon Tourmaline and Alexandrite Optic Character

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

Watermelon Tourmaline and Alexandrite Transparency

Similar to their colors, Watermelon Tourmaline 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, Watermelon Tourmaline is Management Team (2012) and TransparentGemdat.org while Watermelon Tourmaline is Management Team (2012) and TransparentGemdat.org in appearance.

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