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Zinnwaldite
Zinnwaldite

Liddicoatite
Liddicoatite



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Zinnwaldite
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Liddicoatite

Zinnwaldite and Liddicoatite Optical Properties

Optical Properties

Luster

Pearly, Vitreous
Vitreous

Pleochroism

Distinct
Strong: dark brown light brownAnthony et al

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.565-1.625-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.040-0.050-9999
0 0.296
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Clarity

-
Transparent

Zinnwaldite and Liddicoatite Optic Character

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

Zinnwaldite and Liddicoatite Transparency

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