Morganite and Grossular Optical Properties

Morganite

Grossular

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1 Optical Properties

1.1 Luster

Vitreous

Greasy, Vitreous

1.2 Pleochroism

Distinct: pale pink bluish-pinkHerve Nicolas Lazzarelli

None

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.573-1.6001.730-1.760

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

cubic

1.8 Birefringence

0.005-0.0090.020

0 0.296

1.9 Clarity

Transparent to translucent

TransparentUlrich Henn and Claudio C. Milisenda

Morganite and Grossular Optic Character

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

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