Hiddenite and Watermelon Tourmaline Optical Properties

Hiddenite

Watermelon Tourmaline

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

Not Available

1.3 Dispersion

0.020.02

0.007 1

1.4 Transparency

Transparent

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.657-1.6811.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.014-0.0160.014-0.040

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TransparentGemdat.org

Hiddenite and Watermelon Tourmaline Optic Character

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

Similar to their colors, Hiddenite 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, Hiddenite is Transparent while Hiddenite is Transparent in appearance.