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Arfvedsonite
Arfvedsonite

Ludlamite
Ludlamite



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Arfvedsonite
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Ludlamite

Arfvedsonite and Ludlamite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Strong: Blue-greens
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.652-1.6991.653-1.693
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

-99990.038-0.044
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Arfvedsonite and Ludlamite Optic Character

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

Similar to their colors, Arfvedsonite and Ludlamite 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.