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Cerussite
Cerussite

Gedrite
Gedrite



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Cerussite
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Gedrite

Cerussite and Gedrite Optical Properties

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Optical Properties

Luster

Adamantine, Vitreous, Resinous
Vitreous

Pleochroism

-
Weak to moderate

Dispersion

0.060.02
0.005 1
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Transparency

Transparent, Translucent
Transparent

Refractive Index

1.803-2.0781.625-1.718
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.273-9999
0 0.296
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Clarity

Transparent
Transparent

Cerussite and Gedrite Optic Character

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

Cerussite and Gedrite Transparency

Similar to their colors, Cerussite and Gedrite 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, Cerussite is Transparent and Translucent while Cerussite is Transparent and Translucent in appearance.