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Watermelon Tourmaline
Watermelon Tourmaline

Manganotantalite
Manganotantalite



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Watermelon Tourmaline
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Manganotantalite

Watermelon Tourmaline and Manganotantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Sometimes strongArthur Thomas
1.3 Dispersion
Albite Optical ..
0.02
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.614-1.666
2.19-2.34
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.014-0.040
0.015
1.9 Clarity
TransparentGemdat.org
TransparentWalter Schumann

Watermelon Tourmaline and Manganotantalite Optic Character

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

Similar to their colors, Watermelon Tourmaline and Manganotantalite 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.