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Smithsonite
Smithsonite

Poldervaartite
Poldervaartite



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Smithsonite and Poldervaartite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Weak: colorless light gray bluish grayAnthony et al
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.620-1.850
1.634-1.656
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.223-0.227
Not Available
1.9 Clarity
Translucent
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 and Poldervaartite 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 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 Translucent while Smithsonite is Translucent in appearance.