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Watermelon Tourmaline
Watermelon Tourmaline

Dumortierite
Dumortierite



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Watermelon Tourmaline
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Dumortierite

Watermelon Tourmaline and Dumortierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
Translucent, Translucent to opaque
1.5 Refractive Index
1.614-1.666
1.669-1.723
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
0.014-0.040
0.011-0.037
1.9 Clarity
TransparentGemdat.org
Translucent

Watermelon Tourmaline and Dumortierite Optic Character

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

Watermelon Tourmaline and Dumortierite Transparency

Similar to their colors, Watermelon Tourmaline and Dumortierite 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.