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Ludlamite
Ludlamite

Gadolinium Gallium Garnet
Gadolinium Gallium Garnet



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Ludlamite
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Gadolinium Gallium Garnet

Ludlamite and Gadolinium Gallium Garnet Optical Properties

Optical Properties

Luster

Vitreous, Pearly
-

Pleochroism

-
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.653-1.6931.97-2.03
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.038-0.044-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Ludlamite and Gadolinium Gallium Garnet Optic Character

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

Ludlamite and Gadolinium Gallium Garnet Transparency

Similar to their colors, Ludlamite and Gadolinium Gallium Garnet 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, Ludlamite is while Ludlamite is in appearance.