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Chrysocolla
Chrysocolla

Dravite
Dravite



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Chrysocolla
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Dravite

Chrysocolla and Dravite Optical Properties

Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Opaque
Transparent

Refractive Index

1.460-1.5701.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.023-0.0500.014-0.032
0 0.296
👆🏻

Clarity

-
Transparent

Chrysocolla and Dravite Optic Character

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

Chrysocolla and Dravite Transparency

Similar to their colors, Chrysocolla and Dravite 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, Chrysocolla is Opaque while Chrysocolla is Opaque in appearance.