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Pleonaste
Pleonaste

Sapphire
Sapphire



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Sapphire

Pleonaste and Sapphire Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Adamantine, Vitreous, Adamantine
1.2 Pleochroism
Not Available
Strong
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Transparent, Translucent, Transparent to opaque
1.5 Refractive Index
1.7801.762-1.788
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available0.008-0.009
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004)
Transparent

Pleonaste and Sapphire Optic Character

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

Pleonaste and Sapphire Transparency

Similar to their colors, Pleonaste and Sapphire 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, Pleonaste is Gemmological Tables (2004) while Pleonaste is Gemmological Tables (2004) in appearance.