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Verdite
Verdite

Tantalite
Tantalite



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Verdite
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Tantalite

Verdite and Tantalite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Silky
Resinous
1.2 Pleochroism
Extreme
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.5802.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Orthorhombic
1.8 Birefringence
Not Available0.083
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentWalter Schumann

Verdite and Tantalite Optic Character

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

Verdite and Tantalite Transparency

Similar to their colors, Verdite 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, Verdite is Translucent while Verdite is Translucent in appearance.