Pyrope and Euclase Optical Properties

Pyrope

Euclase

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1 Optical Properties

1.1 Luster

Greasy, Vitreous

Vitreous

1.2 Pleochroism

None

Weak: colorless-(greenish) yellow

1.3 Dispersion

0.020.02

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.720-1.7561.650-1.677

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

cubic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.8 Birefringence

Not Available0.019-0.025

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Pyrope and Euclase Optic Character

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

Similar to their colors, Pyrope and Euclase 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 is Gemmological Tables (2004) More from other references while Pyrope is Gemmological Tables (2004) More from other references in appearance.