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Goshenite
Goshenite

Foitite
Foitite



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Goshenite
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Foitite

Goshenite and Foitite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Strong: pale lavender dark blueAnthony et al
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TranslucentAnthony et al, Translucent
1.5 Refractive Index
1.562-1.615Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
1.8 Birefringence
0.003-0.010Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentAnthony et al

Goshenite and Foitite Optic Character

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

Goshenite and Foitite Transparency

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