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Diaspore and Fluorapatite Optical Properties


Fluorapatite and Diaspore Optical Properties


Optical Properties

Luster
Pearly   
Vitreous, Resinous   

Pleochroism
Strong   
Weak to strong if coloreD   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Transparent   

Refractive Index
1.702-1.750   
1.631-1.650   

Optic Character
Not Available   
Not Available   

Crystal System
Orthorhombic   
Hexagonal   

Birefringence
0.048   
Not Available   

Clarity
Transparent   
Transparent   

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<< Physical Properties

Diaspore and Fluorapatite Optic Character

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

Similar to their colors, Diaspore and Fluorapatite 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, Diaspore is Transparent while Diaspore is Transparent in appearance.

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