Sunstone and Antigorite Optical Properties

Sunstone

Antigorite

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1 Optical Properties

1.1 Luster

Vitreous

Waxy, Silky, Resinous, Greasy

1.2 Pleochroism

Weak or absentWalter Schumann

pale greenish yellow.

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent

1.5 Refractive Index

1.53-1.551.530-1.575

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Monoclinic Domatic H-M Symbol (m) Space Group: Cm

1.8 Birefringence

0.007-0.010Not Available

0 0.296

1.9 Clarity

Transparent to translucent

Translucent

Sunstone and Antigorite Optic Character

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

Similar to their colors, Sunstone and Antigorite 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.