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Colemanite and Chrysocolla Optical Properties


Chrysocolla and Colemanite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Greasy   

Pleochroism
NilArthur Thomas   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Transparent   
Opaque   

Refractive Index
1.584-1.615   
1.460-1.570   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   
monoclinic   

Birefringence
0.028-0.030   
0.023-0.050   

Clarity
Transparent   
Gemmological Tables (2004) More from other references   

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Colemanite and Chrysocolla Optic Character

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

Similar to their colors, Colemanite and Chrysocolla 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, Colemanite is Transparent while Colemanite is Transparent in appearance.

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