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Fayalite
Fayalite

Lepidocrocite
Lepidocrocite



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Fayalite
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Lepidocrocite

Fayalite and Lepidocrocite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

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

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

TransparentAnthony et al
-

Refractive Index

1.827-1.8791.940
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.042-0.051-9999
0 0.296
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Clarity

TransparentAnthony et al
-

Fayalite and Lepidocrocite Optic Character

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

Fayalite and Lepidocrocite Transparency

Similar to their colors, Fayalite 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, Fayalite is TransparentAnthony et al while Fayalite is TransparentAnthony et al in appearance.