Sunstone and Esperite Optical Properties

Sunstone

Esperite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak or absentWalter Schumann

colorless.

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

OpaqueAnthony et al, Opaque, Transparent

1.5 Refractive Index

1.53-1.551.760-1.774

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

monoclinic

1.8 Birefringence

0.007-0.0100.012

0 0.296

1.9 Clarity

Transparent to translucent

OpaqueAnthony et al

Sunstone and Esperite Optic Character

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

Similar to their colors, Sunstone and Esperite 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, Sunstone is Translucent, Transparent and Transparent to translucent while Sunstone is Translucent, Transparent and Transparent to translucent in appearance.