Titanite and Manganotantalite Optical Properties

Titanite

Manganotantalite

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1 Optical Properties

1.1 Luster

Subadamantine, Resinous

Not Available

1.2 Pleochroism

Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange

Sometimes strongArthur Thomas

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

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

1.5 Refractive Index

1.885-1.9902.19-2.34

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.105-0.1350.015

0 0.296

1.9 Clarity

Not Available

TransparentWalter Schumann

Titanite and Manganotantalite Optic Character

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

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