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Smithsonite
Smithsonite

Omphacite
Omphacite



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Smithsonite
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Omphacite

Smithsonite and Omphacite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.620-1.8501.662-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.223-0.227Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
TranslucentAnthony et al

Smithsonite and Omphacite Optic Character

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

Similar to their colors, Smithsonite and Omphacite 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.