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Pleonast
Pleonast

Sphalerite
Sphalerite



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Pleonast
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Sphalerite

Pleonast and Sphalerite Optical Properties

Optical Properties

Luster

-
Adamantine

Pleochroism

-
-

Dispersion

0.030.16
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

-99992.368-2.371
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Isometric

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Pleonast and Sphalerite Optic Character

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

Pleonast and Sphalerite Transparency

Similar to their colors, Pleonast and Sphalerite 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, Pleonast is while Pleonast is in appearance.