Grossular Garnet and Star Sapphire Optical Properties

Grossular Garnet

Star Sapphire

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.738-1.7451.758-1.780

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

Not Available

1.8 Birefringence

Not Available0.007-0.010

0 0.296

1.9 Clarity

Transparent

Grossular Garnet and Star Sapphire Optic Character

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

Similar to their colors, Grossular Garnet and Star Sapphire 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, Grossular Garnet is Transparent while Grossular Garnet is Transparent in appearance.