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Elbaite
Elbaite

Peridot
Peridot



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Elbaite
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Peridot

Elbaite and Peridot Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Pale green
0.02
Transparent
1.614-1.666
-
Trigonal
0.014-0.032
Transparent
 
Vitreous, Greasy
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
0.02
Transparent
1.64-1.69
-
Orthorhombic
0.036
Transparent

Elbaite and Peridot Optic Character

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

Elbaite and Peridot Transparency

Similar to their colors, Elbaite and Peridot 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, Elbaite is while Elbaite is in appearance.