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Malachite and Moldavite Optical Properties


Moldavite and Malachite Optical Properties


Optical Properties

Luster
Adamantine, Vitreous, Silky, Fibrous   
Vitreous   

Pleochroism
Not Available   
Absent   

Dispersion
None   
None   

Transparency
Opaque   
Transparent, Translucent   

Refractive Index
1.655-1.909   
1.48-1.54   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Amorphous   

Birefringence
0.254   
Not Available   

Clarity
Gemmological Tables (2004) More from other references   
Transparent   

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Malachite and Moldavite Optic Character

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

Similar to their colors, Malachite and Moldavite 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.

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