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Gyrolite and Apophyllite Optical Properties


Apophyllite and Gyrolite Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Vitreous, Pearly   

Pleochroism
Not Available   
Dichroic (colorless)   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Transparent, Translucent   

Refractive Index
1.535   
1.530-1.543   

Optic Character
Not Available   
Uniaxial/-   

Crystal System
Triclinic   
tetragonal   

Birefringence
0.0140   
0.000-0.003   

Clarity
Not Available   
Transparent   

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Gyrolite and Apophyllite Optic Character

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

Similar to their colors, Gyrolite 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, Gyrolite is Not Available while Gyrolite is Not Available in appearance.

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