Jet and Watermelon Tourmaline Optical Properties

Jet

Watermelon Tourmaline

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1 Optical Properties

1.1 Luster

Waxy

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Not Available

1.3 Dispersion

None0.02

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.640-1.6801.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Amorphous

Not Available

1.8 Birefringence

Not Available0.014-0.040

0 0.296

1.9 Clarity

Gemmological Tables (2004) More from other references

TransparentGemdat.org

Jet and Watermelon Tourmaline Optic Character

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

Similar to their colors, Jet 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, Jet is Gemmological Tables (2004) More from other references while Jet is Gemmological Tables (2004) More from other references in appearance.