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Chlorite group and Stibiotantalite Optical Properties


Stibiotantalite and Chlorite group Optical Properties


Optical Properties

Luster
Vitreous, Pearly   
Adamantine   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
1.57-1.67   
2.37-2.45   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
Not Available   
0.08   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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Chlorite group and Stibiotantalite Optic Character

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

Similar to their colors, Chlorite group and Stibiotantalite 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, Chlorite group is Not Available while Chlorite group is Not Available in appearance.

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