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Sphalerite
Sphalerite

Pyromorphite
Pyromorphite



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Sphalerite
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Pyromorphite

Sphalerite and Pyromorphite Optical Properties

Optical Properties

Luster

Adamantine
Resinous, Subadamantine

Pleochroism

-
Weak

Dispersion

0.160.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

2.368-2.3712.042-2.059
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Hexagonal

Birefringence

-99990.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Sphalerite and Pyromorphite Optic Character

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

Sphalerite and Pyromorphite Transparency

Similar to their colors, Sphalerite and Pyromorphite 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, Sphalerite is Transparent and Translucent while Sphalerite is Transparent and Translucent in appearance.