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Prase Opal
Prase Opal

Legrandite
Legrandite



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Prase Opal
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Legrandite

Prase Opal and Legrandite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.01
Transparent, Translucent
1.370-1.470
-
-
-9999
Transparent
 
Vitreous
Colorless
0.03
-
1.702-1.740
-
monoclinic
0.060
-

Prase Opal and Legrandite Optic Character

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

Prase Opal and Legrandite Transparency

Similar to their colors, Prase Opal and Legrandite 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, Prase Opal is while Prase Opal is in appearance.