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Poldervaartite
Poldervaartite

Ludlamite
Ludlamite



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Poldervaartite
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Ludlamite

Poldervaartite and Ludlamite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak: colorless light gray bluish grayAnthony et al
0.03
Transparent
1.634-1.656
-
-
-9999
Transparent
 
Vitreous, Pearly
-
0.02
-
1.653-1.693
-
monoclinic
0.038-0.044
TransparentUlrich Henn and Claudio C. Milisenda

Poldervaartite and Ludlamite Optic Character

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

Poldervaartite and Ludlamite Transparency

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