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Boleite
Boleite

Tantalite
Tantalite



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Boleite
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Tantalite

Boleite and Tantalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Resinous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.07NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
2.052.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Orthorhombic
1.8 Birefringence
0.0100.083
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentWalter Schumann

Boleite and Tantalite Optic Character

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

Boleite and Tantalite Transparency

Similar to their colors, Boleite and Tantalite 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, Boleite is Transparent while Boleite is Transparent in appearance.