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Ludlamite
Ludlamite

Povondraite
Povondraite



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Ludlamite
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Povondraite

Ludlamite and Povondraite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Resinous

Pleochroism

-
Strong: yellow-brown

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.653-1.693-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
-

Birefringence

0.038-0.044-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Ludlamite and Povondraite Optic Character

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

Similar to their colors, Ludlamite and Povondraite 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.