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Plumbogummite
Plumbogummite

Inderite
Inderite



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Plumbogummite
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Inderite

Plumbogummite and Inderite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Pearly, Greasy

Pleochroism

None
-

Dispersion

0.04-
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.653-1.6881.488-1.505
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

-99990.017
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Plumbogummite and Inderite Optic Character

Plumbogummite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Plumbogummite and Inderite 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 Inderite 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. Inderite has Biaxial/+ character.

Plumbogummite and Inderite Transparency

Similar to their colors, Plumbogummite and Inderite 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.