Gahnospinel and Titanite Optical Properties

Gahnospinel

Titanite

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1 Optical Properties

1.1 Luster

Vitreous

Subadamantine, Resinous

1.2 Pleochroism

AbsentWalter Schumann

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

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Gemmological Tables (2004)

Not Available

1.5 Refractive Index

1.735-1.7901.885-1.990

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

monoclinic

1.8 Birefringence

Not Available0.105-0.135

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Not Available

Gahnospinel and Titanite Optic Character

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

Similar to their colors, Gahnospinel and Titanite 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, Gahnospinel is Gemmological Tables (2004) while Gahnospinel is Gemmological Tables (2004) in appearance.