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Spodumene
Spodumene

Tantalite
Tantalite



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Spodumene
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Tantalite

Spodumene and Tantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Resinous
1.2 Pleochroism
Strong in kunzite: α-purple
Not Available
1.3 Dispersion
0.02NA
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
1.657-1.6812.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.014-0.0180.083
Achroite
0 0.296
1.9 Clarity
Gems
TransparentWalter Schumann

Spodumene and Tantalite Optic Character

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

Spodumene and Tantalite Transparency

Similar to their colors, Spodumene 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, Spodumene is Transparent while Spodumene is Transparent in appearance.