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Mexican fire opal
Mexican fire opal

Lepidocrocite
Lepidocrocite



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X
Mexican fire opal
X
Lepidocrocite

Mexican fire opal and Lepidocrocite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

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

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.940
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
-

Mexican fire opal and Lepidocrocite Optic Character

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

Mexican fire opal and Lepidocrocite Transparency

Similar to their colors, Mexican fire opal 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, Mexican fire opal is while Mexican fire opal is in appearance.