Spinel and Morganite Optical Properties

Spinel

Morganite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Absent

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.731.573-1.600

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

Hexagonal

1.8 Birefringence

Not Available0.005-0.009

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent to translucent

Spinel and Morganite Optic Character

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

Similar to their colors, Spinel and Morganite 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, Spinel is Translucent, Transparent and Transparent to translucent while Spinel is Translucent, Transparent and Transparent to translucent in appearance.