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Ludlamite
Ludlamite

Crocoite
Crocoite



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Ludlamite
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Crocoite

Ludlamite and Crocoite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Adamantine

Pleochroism

-
Distinctly trichroic

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.653-1.6932.31-2.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n

Birefringence

0.038-0.044-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Ludlamite and Crocoite Optic Character

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

Similar to their colors, Ludlamite and Crocoite 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.