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Sunstone
Sunstone

Opal Australia
Opal Australia



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Opal Australia

Sunstone and Opal Australia Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak or absentWalter Schumann
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent, Translucent, Transparent to translucent
-

Refractive Index

1.53-1.551.42-1.47
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
-

Birefringence

0.007-0.010-9999
0 0.296
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Clarity

Transparent to translucent
-

Sunstone and Opal Australia Optic Character

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

Sunstone and Opal Australia Transparency

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