Watermelon Tourmaline and Zoisite Optical Properties

Watermelon Tourmaline

Zoisite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

1.3 Dispersion

0.020.02

0.007 1

1.4 Transparency

TransparentGemdat.org, Management Team (2012)

Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

1.5 Refractive Index

1.614-1.6661.685-1.707

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

0.014-0.0400.006-0.018

0 0.296

1.9 Clarity

TransparentGemdat.org

Transparent

Watermelon Tourmaline and Zoisite Optic Character

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

Similar to their colors, Watermelon Tourmaline and Zoisite 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.