Diamond and Cassiterite Optical Properties

Diamond

Cassiterite

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1 Optical Properties

1.1 Luster

Adamantine

Adamantine, Greasy

1.2 Pleochroism

None

Pleochroic haloes have been observed. Dichroic in yellow

1.3 Dispersion

0.040.07

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to opaque

Transparent, Translucent

1.5 Refractive Index

2.417-2.4191.990-2.105

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

cubic

tetragonal

1.8 Birefringence

Not Available0.096-0.098

0 0.296

1.9 Clarity

Transparent

Diamond and Cassiterite Optic Character

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

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Diamond and Cassiterite Transparency

Similar to their colors, Diamond 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, Diamond is Translucent, Transparent and Transparent to opaque while Diamond is Translucent, Transparent and Transparent to opaque in appearance.