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Fuchsite
Fuchsite

Polyhalite
Polyhalite



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Fuchsite
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Polyhalite

Fuchsite and Polyhalite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Resinous

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.552-1.6181.546-1.548
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Triclinic

Birefringence

-99990.021
0 0.296
👆🏻

Clarity

Transparent
-

Fuchsite and Polyhalite Optic Character

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

Fuchsite and Polyhalite Transparency

Similar to their colors, Fuchsite and Polyhalite 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, Fuchsite is Transparent while Fuchsite is Transparent in appearance.