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Faustite and Astrophyllite Optical Properties


Astrophyllite and Faustite Optical Properties


Optical Properties

Luster
Waxy   
Greasy, Pearly   

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

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Translucent   

Refractive Index
1.612   
1.678-1.758   

Optic Character
Not Available   
Not Available   

Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1   
Triclinic   

Birefringence
Not Available   
0.050   

Clarity
Translucent   
Translucent   

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Faustite and Astrophyllite Optic Character

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

Similar to their colors, Faustite 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, Faustite is Translucent while Faustite is Translucent in appearance.

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