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Vanadinite
Vanadinite

Mellite
Mellite



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Vanadinite
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Mellite

Vanadinite and Mellite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Vitreous
1.2 Pleochroism
Not Available
Weak: yellowish brown yellowAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.4161.509-1.541
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.0660.030
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Vanadinite and Mellite Optic Character

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

Vanadinite and Mellite Transparency

Similar to their colors, Vanadinite and Mellite 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, Vanadinite is Not Available while Vanadinite is Not Available in appearance.