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Arfvedsonite
Arfvedsonite

Amethyst
Amethyst



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Arfvedsonite
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Amethyst

Arfvedsonite and Amethyst Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Strong: Blue-greens
None

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.652-1.6991.544-1.553
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

-
Transparent

Arfvedsonite and Amethyst Optic Character

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

Arfvedsonite and Amethyst Transparency

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