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Cassiterite
Cassiterite

Jacobsite
Jacobsite



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Cassiterite
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Jacobsite

Cassiterite and Jacobsite Optical Properties

Optical Properties

Luster

Adamantine, Greasy
-

Pleochroism

Pleochroic haloes have been observed. Dichroic in yellow
-

Dispersion

0.070.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.990-2.105-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.096-0.098-9999
0 0.296
👆🏻

Clarity

Transparent
Translucent

Cassiterite and Jacobsite Optic Character

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

Cassiterite and Jacobsite Transparency

Similar to their colors, Cassiterite and Jacobsite 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, Cassiterite is Transparent and Translucent while Cassiterite is Transparent and Translucent in appearance.