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Gibbsite and Coral Optical Properties


Coral and Gibbsite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
colorless.   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Not Available   
Translucent   

Refractive Index
Not Available   
1.486-1.658   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Trigonal   

Birefringence
Not Available   
0.160-0.172   

Clarity
Not Available   
Translucent   

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<< Physical Properties

Gibbsite and Coral Optic Character

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

Similar to their colors, Gibbsite and Coral 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, Gibbsite is Not Available while Gibbsite is Not Available in appearance.

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Grey Gemstones


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