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Smithsonite
Smithsonite

Poldervaartite
Poldervaartite



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Smithsonite
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Poldervaartite

Smithsonite and Poldervaartite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
-
0.01
Translucent
1.620-1.850
-
Trigonal
0.223-0.227
Translucent
 
Vitreous
Weak: colorless light gray bluish grayAnthony et al
0.03
Transparent
1.634-1.656
-
-
-9999
Transparent

Smithsonite and Poldervaartite Optic Character

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

Smithsonite and Poldervaartite Transparency

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