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Boulder Opal and Kornerupine Optical Properties


Kornerupine and Boulder Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
X = colorless to green; Y = colorless   

Dispersion
None   
0.02   
21

Transparency
Transparent, Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.370-1.470   
1.660-1.685   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Orthorhombic   

Birefringence
Not Available   
0.012-0.017   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Boulder Opal and Kornerupine Optic Character

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

Similar to their colors, Boulder Opal and Kornerupine 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, Boulder Opal is Translucent and Transparent while Boulder Opal is Translucent and Transparent in appearance.

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