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Liddicoatite
Liddicoatite

Bustamite
Bustamite



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Liddicoatite
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Bustamite

Liddicoatite and Bustamite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong: dark brown light brownAnthony et al
Weak

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

-99991.662-1.707
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Triclinic

Birefringence

-99990.013-0.015
0 0.296
👆🏻

Clarity

Transparent
Transparent

Liddicoatite and Bustamite Optic Character

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

Liddicoatite and Bustamite Transparency

Similar to their colors, Liddicoatite and Bustamite 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, Liddicoatite is Transparent while Liddicoatite is Transparent in appearance.