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Ammolite
Ammolite

Ludlamite
Ludlamite



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Ammolite
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Ludlamite

Ammolite and Ludlamite Optical Properties

Optical Properties

Luster

Silky, Vitreous
Vitreous, Pearly

Pleochroism

None
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.520-1.6701.653-1.693
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
monoclinic

Birefringence

0.135-0.1450.038-0.044
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Ammolite and Ludlamite Optic Character

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

Ammolite and Ludlamite Transparency

Similar to their colors, Ammolite 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, Ammolite is while Ammolite is in appearance.