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Moonstone and Apophyllite Optical Properties


Apophyllite and Moonstone Optical Properties


Optical Properties

Luster
Pearly   
Vitreous, Pearly   

Pleochroism
AbsentWalter Schumann   
Dichroic (colorless)   

Dispersion
None   
Not Available   

Transparency
Transparent, Transparent to translucent   
Transparent, Translucent   

Refractive Index
1.518-1.527   
1.530-1.543   

Optic Character
Not Available   
Uniaxial/-   

Crystal System
monoclinic   
tetragonal   

Birefringence
0.006-0.007   
0.000-0.003   

Clarity
Transparent   
Transparent   

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Moonstone and Apophyllite Optic Character

Moonstone and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Moonstone and Apophyllite 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 Moonstone and Apophyllite 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. Apophyllite has Uniaxial/- character.

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Moonstone and Apophyllite Transparency

Similar to their colors, Moonstone and Apophyllite 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.

Semi Precious

Semi Precious


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