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Ametrine and Apophyllite Optical Properties


Apophyllite and Ametrine Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Pearly   

Pleochroism
Not Available   
Dichroic (colorless)   

Dispersion
0.01   
27
Not Available   

Transparency
Transparent   
Transparent, Translucent   

Refractive Index
1.544-1.553   
1.530-1.543   

Optic Character
Not Available   
Uniaxial/-   

Crystal System
Trigonal   
tetragonal   

Birefringence
0.009   
0.000-0.003   

Clarity
Transparent   
Transparent   

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Ametrine and Apophyllite Optic Character

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

Similar to their colors, Ametrine 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, Ametrine is Transparent while Ametrine is Transparent in appearance.

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