Amazonite and Omphacite Optical Properties

Amazonite

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

WeakMichael OâDonoghue

Weak: colorless -- very pale green -- very pale green

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent, Translucent to opaque

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.522-1.5301.662-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.008-0.010Not Available

0 0.296

1.9 Clarity

Translucent

TranslucentAnthony et al

Amazonite and Omphacite Optic Character

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

Similar to their colors, Amazonite and Omphacite 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, Amazonite is Translucent and Translucent to opaque while Amazonite is Translucent and Translucent to opaque in appearance.