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Plumbogummite
Plumbogummite

Zoisite
Zoisite



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X
Plumbogummite
X
Zoisite

Plumbogummite and Zoisite Optical Properties

Optical Properties

Luster

Resinous
Vitreous

Pleochroism

None
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

Dispersion

0.040.02
0.005 1
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Transparency

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

Refractive Index

1.653-1.6881.685-1.707
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

-99990.006-0.018
0 0.296
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Clarity

-
Transparent

Plumbogummite and Zoisite Optic Character

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

Plumbogummite and Zoisite Transparency

Similar to their colors, Plumbogummite 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, Plumbogummite is while Plumbogummite is in appearance.