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Emerald
Emerald

Rubellite
Rubellite



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Emerald and Rubellite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Strong dichroism: yellow green Lazzarelli
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.02
Rank: 22 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
1.5 Refractive Index
1.565-1.602
1.614-1.666
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.0040-0.0070
0.014-0.040
1.9 Clarity
Color grading system
Transparent

Emerald and Rubellite Optic Character

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

Emerald and Rubellite Transparency

Similar to their colors, Emerald and Rubellite 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, Emerald is Translucent, Transparent and Transparent to translucent while Emerald is Translucent, Transparent and Transparent to translucent in appearance.