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Coral
Coral

Tantalite
Tantalite



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Coral
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Tantalite

Coral and Tantalite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Resinous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
NoneNA
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
1.486-1.6582.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.160-0.1720.083
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentWalter Schumann

Coral and Tantalite Optic Character

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

Coral and Tantalite Transparency

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