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Humite
Humite

Zoisite
Zoisite



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Humite
X
Zoisite

Humite and Zoisite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

pale golden yellow or deep golden yellow
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

Dispersion

0.030.02
0.005 1
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Transparency

Transparent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.607-1.6751.685-1.707
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

-99990.006-0.018
0 0.296
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Clarity

Transparent
Transparent

Humite and Zoisite Optic Character

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

Humite and Zoisite Transparency

Similar to their colors, Humite and Zoisite 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, Humite is Transparent while Humite is Transparent in appearance.