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Liddicoatite
Liddicoatite

Tantalite
Tantalite



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Liddicoatite
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Tantalite

Liddicoatite and Tantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Resinous
1.2 Pleochroism
Strong: dark brown light brownAnthony et al
Not Available
1.3 Dispersion
NANA
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
Not Available2.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.083
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentWalter Schumann

Liddicoatite and Tantalite Optic Character

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

Liddicoatite and Tantalite Transparency

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