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Shigaite
Shigaite

Lepidocrocite
Lepidocrocite



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Shigaite
X
Lepidocrocite

Shigaite and Lepidocrocite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

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

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.5461.940
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Shigaite and Lepidocrocite Optic Character

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

Shigaite and Lepidocrocite Transparency

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