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Common Opal
Common Opal

Rosasite
Rosasite



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X
Common Opal
X
Rosasite

Common Opal and Rosasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
Translucent
1.37-1.52
-
-
-9999
Translucent
 
Silky, Vitreous
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
0.03
-
1.672-1.688
-
monoclinic
0.139-0.143
-

Common Opal and Rosasite Optic Character

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

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