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Zincite and Black Opal Optical Properties


Black Opal and Zincite Optical Properties


Optical Properties

Luster
Subadamantine, Resinous   
Not Available   

Pleochroism
Very weak   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references   
Transparent, Translucent   

Refractive Index
2.013-2.029   
1.370-1.470   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Not Available   

Birefringence
0.016   
Not Available   

Clarity
TransparentRobert C. Kammerling   
Transparent   

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Zincite and Black Opal Optic Character

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

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Zincite and Black Opal Transparency

Similar to their colors, Zincite and Black 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, Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling while Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling in appearance.

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