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Peridot
Peridot

Turquoise
Turquoise



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Peridot
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Turquoise

Peridot and Turquoise Optical Properties

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Optical Properties

Luster

Vitreous, Greasy
Waxy

Pleochroism

Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
Weak

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

Transparent
Translucent, Opaque

Refractive Index

1.64-1.691.610-1.650
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Triclinic

Birefringence

0.0360.040
0 0.296
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Clarity

Transparent
Translucent

Peridot and Turquoise Optic Character

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

Peridot and Turquoise Transparency

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