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Catapleiite and Fluorapatite Optical Properties


Fluorapatite and Catapleiite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous, Resinous   

Pleochroism
Not Available   
Weak to strong if coloreD   

Dispersion
Not Available   
Not Available   

Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)   
Transparent   

Refractive Index
1.590-1.629   
1.631-1.650   

Optic Character
Not Available   
Not Available   

Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)   
Hexagonal   

Birefringence
0.039   
Not Available   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Catapleiite and Fluorapatite Optic Character

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

Similar to their colors, Catapleiite 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, Catapleiite is Gemmological Tables (2004) and TransparentUlrich Henn and Claudio C. Milisenda while Catapleiite is Gemmological Tables (2004) and TransparentUlrich Henn and Claudio C. Milisenda in appearance.

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