Manganotantalite and Schorl Optical Properties

Manganotantalite

Schorl

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Sometimes strongArthur Thomas

Very strong: yellow-brown pale yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

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

Transparent, Translucent

1.5 Refractive Index

2.19-2.341.635-1.672

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.0150.025

0 0.296

1.9 Clarity

TransparentWalter Schumann

Transparent

Manganotantalite and Schorl Optic Character

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

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