Tantalite and Pearl Optical Properties

Tantalite

Pearl

Add ⊕

1 Optical Properties

1.1 Luster

Resinous

Pearly

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

Translucent, Opaque

1.5 Refractive Index

2.190-2.4571.52-1.66

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

0.0830.156

0 0.296

1.9 Clarity

TransparentWalter Schumann

Translucent

Tantalite and Pearl Optic Character

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

Compare Brown Gemstones

Tantalite Vs Verdelite

Tantalite Vs Wavellite

Tantalite Vs Willemite

Tantalite and Pearl Transparency

Similar to their colors, Tantalite and Pearl 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 Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Tantalite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.