Home
Gemstones


Malachite and Common Opal Optical Properties


Common Opal and Malachite Optical Properties


Optical Properties

Luster
Adamantine, Vitreous, Silky, Fibrous   
Not Available   

Pleochroism
Not Available   
AbsentWalter Schumann   

Dispersion
None   
None   

Transparency
Opaque   
Translucent   

Refractive Index
1.655-1.909   
1.37-1.52   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.254   
Not Available   

Clarity
Gemmological Tables (2004) More from other references   
Translucent   

Benefits >>
<< Physical Properties

Malachite and Common Opal Optic Character

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

Compare Gems for Scorpio

Malachite and Common Opal Transparency

Similar to their colors, Malachite and Common Opal 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, Malachite is Opaque while Malachite is Opaque in appearance.

Gems for Scorpio

Gems for Scorpio


Compare Gems for Scorpio