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Thomsonite and Zincite Optical Properties


Zincite and Thomsonite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Subadamantine, Resinous   

Pleochroism
NilArthur Thomas   
Very weak   

Dispersion
Not Available   
Not Available   

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

Refractive Index
1.510-1.550   
2.013-2.029   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.015-0.020   
0.016   

Clarity
Translucent   
TransparentRobert C. Kammerling   

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Thomsonite and Zincite Optic Character

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

Similar to their colors, Thomsonite and Zincite 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, Thomsonite is Translucent while Thomsonite is Translucent in appearance.

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