Hiddenite and Onyx Optical Properties

Hiddenite

Onyx

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

Not Available

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

Translucent, Opaque, Translucent to opaque

1.5 Refractive Index

1.657-1.6811.530-1.543

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Trigonal

1.8 Birefringence

0.014-0.016Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

OpaqueHerve Nicolas Lazzarelli

Hiddenite and Onyx Optic Character

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

Compare Green Gemstones

Hiddenite Vs Liddicoatite

Hiddenite Vs Lazurite

Hiddenite Vs Kyanite Cyprine

Hiddenite and Onyx Transparency

Similar to their colors, Hiddenite and Onyx 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.