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Amethyst
Amethyst

White Opal
White Opal



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Amethyst
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White Opal

Amethyst and White Opal Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
None
AbsentWalter Schumann
1.3 Dispersion
0.01None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Transparent to translucent
Translucent
1.5 Refractive Index
1.544-1.5531.37-1.52
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.009Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Amethyst and White Opal Optic Character

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

Similar to their colors, Amethyst and White Opal 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 Transparent and Transparent to translucent while Amethyst is Transparent and Transparent to translucent in appearance.