Dravite and Diamond Optical Properties

Dravite

Diamond

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1 Optical Properties

1.1 Luster

Vitreous

Adamantine

1.2 Pleochroism

Very strong: pale yellow colorless

None

1.3 Dispersion

0.020.04

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent, Transparent to opaque

1.5 Refractive Index

1.614-1.6662.417-2.419

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

cubic

1.8 Birefringence

0.014-0.032Not Available

0 0.296

1.9 Clarity

Transparent

Dravite and Diamond Optic Character

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

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Dravite and Diamond Transparency

Similar to their colors, Dravite 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, Dravite is Transparent while Dravite is Transparent in appearance.