Esperite and Grossular Optical Properties

Esperite

Grossular

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1 Optical Properties

1.1 Luster

Vitreous

Greasy, Vitreous

1.2 Pleochroism

colorless.

None

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

OpaqueAnthony et al, Opaque, Transparent

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.760-1.7741.730-1.760

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

cubic

1.8 Birefringence

0.0120.020

0 0.296

1.9 Clarity

OpaqueAnthony et al

TransparentUlrich Henn and Claudio C. Milisenda

Esperite and Grossular Optic Character

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

Similar to their colors, Esperite 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, Esperite is Opaque, OpaqueAnthony et al and Transparent while Esperite is Opaque, OpaqueAnthony et al and Transparent in appearance.