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Petoskey Stone and Stibiotantalite Optical Properties


Stibiotantalite and Petoskey Stone Optical Properties


Optical Properties

Luster
Not Available   
Adamantine   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

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

Refractive Index
Not Available   
2.37-2.45   

Optic Character
Not Available   
Not Available   

Crystal System
Trigonal   
Not Available   

Birefringence
Not Available   
0.08   

Clarity
Not Available   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Petoskey Stone and Stibiotantalite Optic Character

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

Similar to their colors, Petoskey Stone 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, Petoskey Stone is Not Available while Petoskey Stone is Not Available in appearance.

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