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Leucite and Astrophyllite Optical Properties


Astrophyllite and Leucite Optical Properties


Optical Properties

Luster
Vitreous   
Greasy, Pearly   

Pleochroism
Not Available   
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow   

Dispersion
0.01   
29
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Translucent   

Refractive Index
1.504-1.510   
1.678-1.758   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Triclinic   

Birefringence
0.001   
0.050   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Translucent   

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Leucite and Astrophyllite Optic Character

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

Similar to their colors, Leucite and Astrophyllite 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, Leucite is Gemmological Tables (2004) More from other references while Leucite is Gemmological Tables (2004) More from other references in appearance.

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