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Celestine
Celestine

Foitite
Foitite



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Celestine
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Foitite

Celestine and Foitite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
Weakly trichroiC
Strong: pale lavender dark blueAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gems
TranslucentAnthony et al, Translucent
1.5 Refractive Index
1.619-1.635Not 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
0.004-0.012Not Available
Achroite
0 0.296
1.9 Clarity
Gems
TranslucentAnthony et al

Celestine and Foitite Optic Character

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

Celestine and Foitite Transparency

Similar to their colors, Celestine 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, Celestine is Gems while Celestine is Gems in appearance.