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Tantalite
Tantalite

Adamite
Adamite



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Tantalite
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Adamite

Tantalite and Adamite Optical Properties

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1 Optical Properties
1.1 Luster
Resinous
Vitreous
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Transparent
1.5 Refractive Index
2.190-2.4571.708-1.722
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.0830.031-0.050
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
Transparent

Tantalite and Adamite Optic Character

Tantalite and Adamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Tantalite and Adamite 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 Adamite 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. Adamite has Biaxial/+ character.

Tantalite and Adamite Transparency

Similar to their colors, Tantalite and Adamite 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.