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Sulfur
Sulfur

Foitite
Foitite



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Sulfur
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Foitite

Sulfur and Foitite Optical Properties

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

Sulfur and Foitite Optic Character

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

Sulfur and Foitite Transparency

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