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Mottramite
Mottramite

Watermelon Tourmaline
Watermelon Tourmaline



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Mottramite
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Watermelon Tourmaline

Mottramite and Watermelon Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Greasy
Vitreous
1.2 Pleochroism
Visible X=Y= canary yellow to greenish yellow
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
2.1701.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.1500.014-0.040
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentGemdat.org

Mottramite and Watermelon Tourmaline Optic Character

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

Mottramite and Watermelon Tourmaline Transparency

Similar to their colors, Mottramite 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, Mottramite is Not Available while Mottramite is Not Available in appearance.