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Ludlamite
Ludlamite

Watermelon Tourmaline
Watermelon Tourmaline



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Ludlamite
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Watermelon Tourmaline

Ludlamite and Watermelon Tourmaline Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
TransparentGemdat.org

Refractive Index

1.653-1.6931.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.038-0.0440.014-0.040
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentGemdat.org

Ludlamite and Watermelon Tourmaline Optic Character

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

Ludlamite and Watermelon Tourmaline Transparency

Similar to their colors, Ludlamite 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, Ludlamite is while Ludlamite is in appearance.