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Lepidocrocite
Lepidocrocite

Stibiotantalite
Stibiotantalite



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Lepidocrocite
X
Stibiotantalite

Lepidocrocite and Stibiotantalite Optical Properties

Optical Properties

Luster

-
Adamantine

Pleochroism

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

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.9402.37-2.45
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

-99990.08
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Lepidocrocite and Stibiotantalite Optic Character

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

Similar to their colors, Lepidocrocite and Stibiotantalite 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.