Verdite and Manganotantalite Optical Properties

Verdite

Manganotantalite

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1 Optical Properties

1.1 Luster

Vitreous, Silky

Not Available

1.2 Pleochroism

Extreme

Sometimes strongArthur Thomas

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

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

1.5 Refractive Index

1.5802.19-2.34

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

Not Available

1.8 Birefringence

Not Available0.015

0 0.296

1.9 Clarity

Translucent

TransparentWalter Schumann

Verdite and Manganotantalite Optic Character

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

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Verdite and Manganotantalite Transparency

Similar to their colors, Verdite and Manganotantalite 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, Verdite is Translucent while Verdite is Translucent in appearance.