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Plumbogummite
Plumbogummite

Augelite
Augelite



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Plumbogummite
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Augelite

Plumbogummite and Augelite Optical Properties

Optical Properties

Luster

Resinous
Pearly

Pleochroism

None
-

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.653-1.6881.570-1.591
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
-

Birefringence

-99990.020-0.021
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Plumbogummite and Augelite Optic Character

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

Similar to their colors, Plumbogummite and Augelite 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.