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Boulder Opal
Boulder Opal

Diamond
Diamond



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Boulder Opal
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Diamond

Boulder Opal and Diamond Optical Properties

Optical Properties

Luster

-
Adamantine

Pleochroism

-
None

Dispersion

0.010.04
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Transparent to opaque

Refractive Index

1.370-1.4702.417-2.419
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Transparent
Transparent

Boulder Opal and Diamond Optic Character

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

Boulder Opal and Diamond Transparency

Similar to their colors, Boulder Opal and Diamond 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, Boulder Opal is Transparent and Translucent while Boulder Opal is Transparent and Translucent in appearance.