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Plumbogummite
Plumbogummite

Grossular
Grossular



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Plumbogummite
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Grossular

Plumbogummite and Grossular Optical Properties

Optical Properties

Luster

Resinous
Greasy, Vitreous

Pleochroism

None
None

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.653-1.6881.730-1.760
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
cubic

Birefringence

-99990.020
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Plumbogummite and Grossular Optic Character

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

Similar to their colors, Plumbogummite and Grossular 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.