Esperite and Emerald Optical Properties

Esperite

Emerald

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

colorless.

Strong dichroism: yellow green Lazzarelli

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

OpaqueAnthony et al, Opaque, Transparent

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.760-1.7741.565-1.602

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Hexagonal

1.8 Birefringence

0.0120.0040-0.0070

0 0.296

1.9 Clarity

OpaqueAnthony et al

Color grading system

Esperite and Emerald Optic Character

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

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Esperite and Emerald Transparency

Similar to their colors, Esperite 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, Esperite is Opaque, OpaqueAnthony et al and Transparent while Esperite is Opaque, OpaqueAnthony et al and Transparent in appearance.