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Mellite
Mellite

Aragonite
Aragonite



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Mellite
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Aragonite

Mellite and Aragonite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous, Resinous

Pleochroism

Weak: yellowish brown yellowAnthony et al
StrongArthur Thomas

Dispersion

0.010.17
0.005 1
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Transparency

-
Transparent, Translucent

Refractive Index

1.509-1.5411.525-1.686
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.0300.155
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Mellite and Aragonite Optic Character

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

Mellite and Aragonite Transparency

Similar to their colors, Mellite and Aragonite 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, Mellite is while Mellite is in appearance.