Erythrite and Verdite Optical Properties

Erythrite

Verdite

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1 Optical Properties

1.1 Luster

Subadamantine, Pearly

Vitreous, Silky

1.2 Pleochroism

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

Extreme

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

1.626-1.6291.580

1 3.25

1.5 Optic Character

Not Available

1.6 Crystal System

monoclinic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.7 Birefringence

Not AvailableNot Available

0 0.296

1.11 Clarity

Not Available

Translucent

Erythrite and Verdite Optic Character

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

Similar to their colors, Erythrite and Verdite 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, Erythrite is Not Available while Erythrite is Not Available in appearance.