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Corundum
Corundum

Watermelon Tourmaline
Watermelon Tourmaline



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Corundum
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Watermelon Tourmaline

Corundum and Watermelon Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous
1.3 Pleochroism
None
Not Available
1.5 Dispersion
0.020.02
Fluorite Optical Properties
0.007 1
1.8 Transparency
Transparent, Translucent
TransparentGemdat.org, Management Team (2012)
1.9 Refractive Index
1.758-1.7801.614-1.666
Agate Opal
1 3.25
1.13 Optic Character
Not Available
Not Available
1.14 Crystal System
Trigonal
Not Available
1.15 Birefringence
0.007-0.0100.014-0.040
Achroite
0 0.296
1.17 Clarity
Gemmological Tables (2004) More from other references
TransparentGemdat.org

Corundum and Watermelon Tourmaline Optic Character

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

Corundum and Watermelon Tourmaline Transparency

Similar to their colors, Corundum 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, Corundum is Translucent and Transparent while Corundum is Translucent and Transparent in appearance.