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Stibiotantalite and Inderite Optical Properties


Inderite and Stibiotantalite Optical Properties


Optical Properties

Luster
Adamantine   
Vitreous, Pearly, Greasy   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Gemmological Tables (2004)   

Refractive Index
2.37-2.45   
1.488-1.505   

Optic Character
Not Available   
Biaxial/+   

Crystal System
Not Available   
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a   

Birefringence
0.08   
0.017   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
TransparentUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Stibiotantalite and Inderite Optic Character

Stibiotantalite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Stibiotantalite and Inderite 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 Stibiotantalite and Inderite 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. Inderite has Biaxial/+ character.

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Stibiotantalite and Inderite Transparency

Similar to their colors, Stibiotantalite and Inderite 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, Stibiotantalite is Gemmological Tables (2004) More from other references while Stibiotantalite is Gemmological Tables (2004) More from other references in appearance.

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