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Smithsonite
Smithsonite

Prasiolite
Prasiolite



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Prasiolite

Smithsonite and Prasiolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.620-1.850
1.544-1.553
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.223-0.227
0.009
1.9 Clarity
Translucent
Transparent

Smithsonite and Prasiolite Optic Character

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

Similar to their colors, Smithsonite and Prasiolite 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.