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Smithsonite
Smithsonite

Malachite
Malachite



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Smithsonite
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Malachite

Smithsonite and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
0.01None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Opaque
1.5 Refractive Index
1.620-1.8501.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.223-0.2270.254
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Smithsonite and Malachite Optic Character

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

Similar to their colors, Smithsonite and Malachite 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.