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Narsarsukite and Boulder Opal Optical Properties


Boulder Opal and Narsarsukite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Not Available   

Pleochroism
Weak; O = colorless to yellow; E = colorless to honey-yellow   
AbsentWalter Schumann   

Dispersion
Not Available   
None   

Transparency
Transparent, Translucent   
Transparent, Translucent   

Refractive Index
1.610-1.647   
1.370-1.470   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Not Available   

Birefringence
0.021   
Not Available   

Clarity
Transparent   
Transparent   

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Narsarsukite and Boulder Opal Optic Character

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

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

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