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Vesuvianite
Vesuvianite

Malachite
Malachite



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Vesuvianite
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Malachite

Vesuvianite and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
slight in colored varieties
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Opaque
1.5 Refractive Index
1.703-1.752
1.655-1.909
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
monoclinic
1.8 Birefringence
0.004-0.006
0.254
1.9 Clarity
Not Available
Gemmological Tables (2004) More from other references

Vesuvianite and Malachite Optic Character

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

Vesuvianite and Malachite Transparency

Similar to their colors, Vesuvianite 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, Vesuvianite is Not Available while Vesuvianite is Not Available in appearance.