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Dravite
Dravite

Lepidocrocite
Lepidocrocite



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X
Dravite
X
Lepidocrocite

Dravite and Lepidocrocite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Very strong: pale yellow colorless
Strong; X = colorless to yellow; Y = orange

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.614-1.6661.940
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Orthorhombic

Birefringence

0.014-0.032-9999
0 0.296
👆🏻

Clarity

Transparent
-

Dravite and Lepidocrocite Optic Character

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

Dravite and Lepidocrocite Transparency

Similar to their colors, Dravite 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, Dravite is Transparent while Dravite is Transparent in appearance.