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Cerussite
Cerussite

Helenite
Helenite



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Cerussite
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Helenite

Cerussite and Helenite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous, Resinous
-

Pleochroism

-
-

Dispersion

0.060.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.803-2.078-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.273-9999
0 0.296
👆🏻

Clarity

Transparent
-

Cerussite and Helenite Optic Character

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

Similar to their colors, Cerussite and Helenite 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.