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Pumpellyite
Pumpellyite

Watermelon Tourmaline
Watermelon Tourmaline



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Pumpellyite
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Watermelon Tourmaline

Pumpellyite and Watermelon Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Fibrous
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.674-1.7641.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.014-0.0160.014-0.040
Achroite
0 0.296
1.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
TransparentGemdat.org

Pumpellyite and Watermelon Tourmaline Optic Character

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

Pumpellyite and Watermelon Tourmaline Transparency

Similar to their colors, Pumpellyite 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, Pumpellyite is Gemmological Tables (2004) while Pumpellyite is Gemmological Tables (2004) in appearance.