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Emerald
Emerald

Rosasite
Rosasite



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Emerald
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Emerald and Rosasite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Silky, Vitreous
1.2 Pleochroism
Strong dichroism: yellow green Lazzarelli
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent, Transparent to translucent
Not Available
1.5 Refractive Index
1.565-1.602
1.672-1.688
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
monoclinic
1.8 Birefringence
0.0040-0.0070
0.139-0.143
1.9 Clarity
Color grading system
Not Available

Emerald and Rosasite Optic Character

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

Similar to their colors, Emerald and Rosasite 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.