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Plumbogummite
Plumbogummite

Variscite
Variscite



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Plumbogummite
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Variscite

Plumbogummite and Variscite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Waxy

Pleochroism

None
-

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
Translucent, Opaque . May be translucent when backlit on the edges.

Refractive Index

1.653-1.6881.560-1.594
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

-99990.031
0 0.296
👆🏻

Clarity

-
Translucent

Plumbogummite and Variscite Optic Character

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

Similar to their colors, Plumbogummite and Variscite 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.