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Morganite and Oligoclase Optical Properties


Oligoclase and Morganite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent, Transparent to translucent   
Gemmological Tables (2004)   

Refractive Index
1.573-1.600   
1.538-1.550   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
Not Available   

Birefringence
0.005-0.009   
0.010   

Clarity
Transparent to translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Morganite and Oligoclase Optic Character

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

Similar to their colors, Morganite and Oligoclase 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, Morganite is Transparent, Translucent and Transparent to translucent while Morganite is Transparent, Translucent and Transparent to translucent in appearance.

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