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Dumortierite quartz
Dumortierite quartz

Foitite
Foitite



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Dumortierite quartz
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Foitite

Dumortierite quartz and Foitite Optical Properties

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
Not Available
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

Dumortierite quartz and Foitite Optic Character

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

Dumortierite quartz and Foitite Transparency

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