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Idocrase
Idocrase

Cassiterite
Cassiterite



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Idocrase
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Cassiterite

Idocrase and Cassiterite Optical Properties

Optical Properties

Luster

-
Adamantine, Greasy

Pleochroism

-
Pleochroic haloes have been observed. Dichroic in yellow

Dispersion

0.020.07
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.67-1.761.990-2.105
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
tetragonal

Birefringence

-99990.096-0.098
0 0.296
👆🏻

Clarity

-
Transparent

Idocrase and Cassiterite Optic Character

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

Idocrase and Cassiterite Transparency

Similar to their colors, Idocrase and Cassiterite 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, Idocrase is while Idocrase is in appearance.