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Plumbogummite
Plumbogummite

Lepidolite
Lepidolite



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X
Plumbogummite
X
Lepidolite

Plumbogummite and Lepidolite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Pearly

Pleochroism

None
X = almost colorless; Y = Z = pink

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.653-1.6881.525-1.587
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Triclinic

Birefringence

-99990.0290-0.0380
0 0.296
👆🏻

Clarity

-
Transparent

Plumbogummite and Lepidolite Optic Character

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

Similar to their colors, Plumbogummite and Lepidolite 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.