Pyrope Garnet and Gahnospinel Optical Properties

Pyrope Garnet

Gahnospinel

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gemmological Tables (2004)

1.5 Refractive Index

1.720-1.7601.735-1.790

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Isometric

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent to translucent

TransparentUlrich Henn and Claudio C. Milisenda

Pyrope Garnet and Gahnospinel Optic Character

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

Similar to their colors, Pyrope Garnet and Gahnospinel 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, Pyrope Garnet is Translucent, Transparent and Transparent to translucent while Pyrope Garnet is Translucent, Transparent and Transparent to translucent in appearance.