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Piemontite
Piemontite

Emerald
Emerald



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Piemontite
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Emerald

Piemontite and Emerald Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

visible
Strong dichroism: yellow green Lazzarelli

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.725-1.7561.565-1.602
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.025-0.0760.0040-0.0070
0 0.296
👆🏻

Clarity

-
-

Piemontite and Emerald Optic Character

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

Piemontite and Emerald Transparency

Similar to their colors, Piemontite and Emerald 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, Piemontite is while Piemontite is in appearance.