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Franklinite and Titanite Optical Properties


Titanite and Franklinite Optical Properties


Optical Properties

Luster
Not Available   
Subadamantine, Resinous   

Pleochroism
Not Available   
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Not Available   

Refractive Index
Not Available   
1.885-1.990   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m   
monoclinic   

Birefringence
Not Available   
0.105-0.135   

Clarity
Translucent   
Not Available   

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Franklinite and Titanite Optic Character

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

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Franklinite and Titanite Transparency

Similar to their colors, Franklinite and Titanite 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.

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Red Gemstones


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