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Anatase
Anatase

Mellite
Mellite



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Anatase
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Mellite

Anatase and Mellite Optical Properties

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1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
Weak
Weak: yellowish brown yellowAnthony et al
1.3 Dispersion
0.21NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.488-2.5621.509-1.541
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Not Available
1.8 Birefringence
0.0730.030
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Anatase and Mellite Optic Character

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

Anatase and Mellite Transparency

Similar to their colors, Anatase 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, Anatase is Transparent while Anatase is Transparent in appearance.