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Plumbogummite
Plumbogummite

Tantalite
Tantalite



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Plumbogummite
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Tantalite

Plumbogummite and Tantalite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Resinous
1.2 Pleochroism
None
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.653-1.6882.190-2.457
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
Not Available0.083
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentWalter Schumann

Plumbogummite and Tantalite Optic Character

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

Plumbogummite and Tantalite Transparency

Similar to their colors, Plumbogummite 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, Plumbogummite is Not Available while Plumbogummite is Not Available in appearance.