Sunstone and Hodgkinsonite Optical Properties

Sunstone

Hodgkinsonite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak or absentWalter Schumann

Lavender and pale purple for transparent pink stones.Michael OâDonoghue

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Gems

1.5 Refractive Index

1.53-1.551.720-1.746

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

monoclinic

1.8 Birefringence

0.007-0.0100.026

0 0.296

1.9 Clarity

Transparent to translucent

Gems

Sunstone and Hodgkinsonite Optic Character

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

Similar to their colors, Sunstone and Hodgkinsonite 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.