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Boulder Opal
Boulder Opal

Marialite
Marialite



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Boulder Opal
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Marialite

Boulder Opal and Marialite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly, Resinous

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.370-1.4701.540-1.550
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.004-0.008
0 0.296
👆🏻

Clarity

Transparent
Transparent

Boulder Opal and Marialite Optic Character

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

Similar to their colors, Boulder Opal and Marialite 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.