Morganite and Tanzanite Optical Properties

Morganite

Tanzanite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

Present

1.3 Dispersion

NA0.03

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.573-1.6001.685-1.707

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Orthorhombic

1.8 Birefringence

0.005-0.0090.006-0.018

0 0.296

1.9 Clarity

Transparent to translucent

TransparentUlrich Henn and Claudio C. Milisenda

Morganite and Tanzanite Optic Character

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

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