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Quartz
Quartz

Diamond
Diamond



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Quartz
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Diamond

Quartz and Diamond Optical Properties

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Optical Properties

Luster

Vitreous
Adamantine

Pleochroism

None
None

Dispersion

0.010.04
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.544-1.5532.417-2.419
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
cubic

Birefringence

0.009-9999
0 0.296
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Clarity

Opaque
Transparent

Quartz and Diamond Optic Character

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

Quartz and Diamond Transparency

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