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Omphacite
Omphacite

Plumbogummite
Plumbogummite



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Omphacite
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Plumbogummite

Omphacite and Plumbogummite Optical Properties

Optical Properties

Luster

Vitreous
Resinous

Pleochroism

Weak: colorless -- very pale green -- very pale green
None

Dispersion

0.020.04
0.005 1
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Transparency

TranslucentAnthony et al
-

Refractive Index

1.662-1.7231.653-1.688
1 3.25
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Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-9999-9999
0 0.296
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Clarity

TranslucentAnthony et al
-

Omphacite and Plumbogummite Optic Character

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

Similar to their colors, Omphacite and Plumbogummite 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.