Hiddenite and Erythrite Optical Properties

Hiddenite

Erythrite

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1 Optical Properties

1.1 Luster

Vitreous

Subadamantine, Pearly

1.2 Pleochroism

Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

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

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.657-1.6811.626-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

1.8 Birefringence

0.014-0.016Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Not Available

Hiddenite and Erythrite Optic Character

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

Similar to their colors, Hiddenite 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, Hiddenite is Transparent while Hiddenite is Transparent in appearance.