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Weloganite
Weloganite

Shigaite
Shigaite



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Weloganite
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Shigaite

Weloganite and Shigaite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Distinct

Dispersion

0.030.05
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.5581.546
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Trigonal

Birefringence

0.082-9999
0 0.296
👆🏻

Clarity

-
-

Weloganite and Shigaite Optic Character

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

Weloganite and Shigaite Transparency

Similar to their colors, Weloganite and Shigaite 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, Weloganite is while Weloganite is in appearance.