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Lepidocrocite
Lepidocrocite

Annabergite
Annabergite



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X
Lepidocrocite
X
Annabergite

Lepidocrocite and Annabergite Optical Properties

Optical Properties

Luster

-
Subadamantine, Pearly

Pleochroism

Strong; X = colorless to yellow; Y = orange
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.9401.622
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

-99990.065
0 0.296
👆🏻

Clarity

-
-

Lepidocrocite and Annabergite Optic Character

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

Lepidocrocite and Annabergite Transparency

Similar to their colors, Lepidocrocite and Annabergite 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, Lepidocrocite is while Lepidocrocite is in appearance.