×

Tantalite
Tantalite

Eosphorite
Eosphorite



ADD
Compare
X
Tantalite
X
Eosphorite

Tantalite and Eosphorite Optical Properties

Optical Properties

Luster

Resinous
Vitreous, Resinous

Pleochroism

-
Visible: X = yellow; Y = pink; Z = pale pink to colorless

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

TransparentWalter Schumann
Transparent

Refractive Index

2.190-2.4571.639-1.672
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.0830.029-0.032
0 0.296
👆🏻

Clarity

TransparentWalter Schumann
Transparent

Tantalite and Eosphorite Optic Character

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

Tantalite and Eosphorite Transparency

Similar to their colors, Tantalite and Eosphorite 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, Tantalite is TransparentWalter Schumann while Tantalite is TransparentWalter Schumann in appearance.