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Crystal Opal and Agate Optical Properties


Agate and Crystal Opal Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
AbsentWalter Schumann   
Absent   

Dispersion
None   
None   

Transparency
Transparent   
Translucent   

Refractive Index
1.370-1.   
1.530-1.543   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Trigonal   

Birefringence
Not Available   
0.004   

Clarity
Transparent   
Translucent   

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<< Physical Properties

Crystal Opal and Agate Optic Character

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

Similar to their colors, Crystal Opal and Agate 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, Crystal Opal is Transparent while Crystal Opal is Transparent in appearance.

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