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Plumbogummite
Plumbogummite

Williamsite
Williamsite



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Plumbogummite
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Williamsite

Plumbogummite and Williamsite Optical Properties

Optical Properties

Luster

Resinous
Waxy, Silky, Resinous, Greasy

Pleochroism

None
-

Dispersion

0.040.03
0.005 1
👆🏻

Transparency

-
TranslucentHerve Nicolas Lazzarelli

Refractive Index

1.653-1.6881.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
TranslucentHerve Nicolas Lazzarelli

Plumbogummite and Williamsite Optic Character

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

Plumbogummite and Williamsite Transparency

Similar to their colors, Plumbogummite and Williamsite 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, Plumbogummite is while Plumbogummite is in appearance.