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Omphacite
Omphacite

Narsarsukite
Narsarsukite



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Omphacite
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Narsarsukite

Omphacite and Narsarsukite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Weak: colorless -- very pale green -- very pale green
Weak; O = colorless to yellow; E = colorless to honey-yellow

Dispersion

0.020.02
0.005 1
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Transparency

TranslucentAnthony et al
Transparent, Translucent

Refractive Index

1.662-1.7231.610-1.647
1 3.25
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Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.021
0 0.296
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Clarity

TranslucentAnthony et al
Transparent

Omphacite and Narsarsukite Optic Character

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

Omphacite and Narsarsukite Transparency

Similar to their colors, Omphacite and Narsarsukite 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, Omphacite is TranslucentAnthony et al while Omphacite is TranslucentAnthony et al in appearance.