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Sphalerite
Sphalerite

Idocrase
Idocrase



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Sphalerite
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Idocrase

Sphalerite and Idocrase Optical Properties

Optical Properties

Luster

Adamantine
-

Pleochroism

-
-

Dispersion

0.160.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

2.368-2.3711.67-1.76
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
tetragonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
-

Sphalerite and Idocrase Optic Character

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

Similar to their colors, Sphalerite and Idocrase 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.