Garnet and Beryl Optical Properties

Garnet

Beryl

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Vitreous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous

1.2 Pleochroism

None

Weak to distinct

1.3 Dispersion

0.020.01

0.007 1

1.4 Transparency

Transparent, Transparent to translucent

Transparent, Transparent to opaque

1.5 Refractive Index

1.730-1.8951.560-1.604

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Hexagonal

1.8 Birefringence

Not Available0.0040-0.0070

0 0.296

1.9 Clarity

Transparent

Garnet and Beryl Optic Character

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

Similar to their colors, Garnet and Beryl 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, Garnet is Transparent and Transparent to translucent while Garnet is Transparent and Transparent to translucent in appearance.