×

Amethyst
Amethyst

Pearl
Pearl



ADD
Compare
X
Amethyst
X
Pearl

Amethyst and Pearl Optical Properties

Add ⊕
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
None
0.01
Transparent, Transparent to translucent
1.544-1.553
-
Trigonal
0.009
Transparent
 
Pearly
-
0.03
Translucent, Opaque
1.52-1.66
-
Orthorhombic
0.156
Translucent

Amethyst and Pearl Optic Character

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

Amethyst and Pearl Transparency

Similar to their colors, Amethyst and Pearl 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, Amethyst is while Amethyst is in appearance.