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Common Opal
Common Opal

Shattuckite
Shattuckite



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Common Opal
X
Shattuckite

Common Opal and Shattuckite Optical Properties

Optical Properties

Luster

-
Silky

Pleochroism

-
X = very pale blue; Y = pale blue; Z = deep blue

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
Translucent

Refractive Index

1.37-1.521.752-1.815
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.063
0 0.296
👆🏻

Clarity

Translucent
Translucent

Common Opal and Shattuckite Optic Character

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

Common Opal and Shattuckite Transparency

Similar to their colors, Common Opal and Shattuckite 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, Common Opal is Translucent while Common Opal is Translucent in appearance.