×

Anhydrite
Anhydrite

Arfvedsonite
Arfvedsonite



ADD
Compare
X
Anhydrite
X
Arfvedsonite

Anhydrite and Arfvedsonite Optical Properties

Optical Properties

Luster

Pearly, Greasy
Vitreous

Pleochroism

For violet varieties
Strong: Blue-greens

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.570-1.6141.652-1.699
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
monoclinic

Birefringence

0.042-0.044-9999
0 0.296
👆🏻

Clarity

Transparent
-

Anhydrite and Arfvedsonite Optic Character

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

Anhydrite and Arfvedsonite Transparency

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