Emerald

Erythrite

Emerald and Erythrite Optical Properties

Emerald

Erythrite

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1 Optical Properties

1.1 Luster

Vitreous

Subadamantine, Pearly

1.2 Pleochroism

Strong dichroism: yellow green Lazzarelli

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

1.3 Dispersion

Albite Optical ..

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▶

▼

0.01

Rank: 26 (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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▶

0.044 (Anglesite Opt..)

◀ ▶ ADD ⊕

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Not Available

1.5 Refractive Index

1.565-1.602

1.626-1.629

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

monoclinic

1.8 Birefringence

0.0040-0.0070

Not Available

1.9 Clarity

Color grading system

Not Available

Emerald and Erythrite Optic Character

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

Similar to their colors, Emerald and Erythrite 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.

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