Watermelon Tourmaline and Hureaulite Optical Properties

Watermelon Tourmaline

Hureaulite

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1 Optical Properties

1.1 Luster

Vitreous

Vitreous, Greasy

1.2 Pleochroism

Not Available

Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

TransparentGemdat.org, Management Team (2012)

Transparent

1.5 Refractive Index

1.614-1.6661.647-1.667

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

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

1.8 Birefringence

0.014-0.0400.012

0 0.296

1.9 Clarity

TransparentGemdat.org

Transparent

Watermelon Tourmaline and Hureaulite Optic Character

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

Similar to their colors, Watermelon Tourmaline and Hureaulite 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.