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Moldavite and Foitite Optical Properties


Foitite and Moldavite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Absent   
Strong: pale lavender dark blueAnthony et al   

Dispersion
None   
Not Available   

Transparency
Transparent, Translucent   
TranslucentAnthony et al, Translucent   

Refractive Index
1.48-1.54   
Not Available   

Optic Character
Not Available   
Not Available   

Crystal System
Amorphous   
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m   

Birefringence
Not Available   
Not Available   

Clarity
Transparent   
TranslucentAnthony et al   

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Moldavite and Foitite Optic Character

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

Similar to their colors, Moldavite and Foitite 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, Moldavite is Translucent and Transparent while Moldavite is Translucent and Transparent in appearance.

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