Verdite and Watermelon Tourmaline Optical Properties

Verdite

Watermelon Tourmaline

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1 Optical Properties

1.1 Luster

Vitreous, Silky

Vitreous

1.2 Pleochroism

Extreme

Not Available

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Translucent

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.5801.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

Not Available

1.8 Birefringence

Not Available0.014-0.040

0 0.296

1.9 Clarity

Translucent

TransparentGemdat.org

Verdite and Watermelon Tourmaline Optic Character

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

Similar to their colors, Verdite and Watermelon Tourmaline 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, Verdite is Translucent while Verdite is Translucent in appearance.