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Franklinite
Franklinite

Bytownite
Bytownite



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Franklinite
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Bytownite

Franklinite and Bytownite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
colorless.
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
Not Available1.561-1.583
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Triclinic
1.8 Birefringence
Not Available0.010-0.011
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Franklinite and Bytownite Optic Character

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

Franklinite and Bytownite Transparency

Similar to their colors, Franklinite and Bytownite 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, Franklinite is Translucent while Franklinite is Translucent in appearance.