Falcons Eye and Onyx Optical Properties

Falcons Eye

Onyx

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Not Available

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Gemstones of the world (2001)

Translucent, Opaque, Translucent to opaque

1.5 Refractive Index

1.534-1.5401.530-1.543

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Gemstones of the world (2001)

OpaqueHerve Nicolas Lazzarelli

Falcons Eye and Onyx Optic Character

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

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Falcons Eye and Onyx Transparency

Similar to their colors, Falcons Eye 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, Falcons Eye is Gemstones of the world (2001) while Falcons Eye is Gemstones of the world (2001) in appearance.