Optical Properties of Mellite

Mellite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak: yellowish brown yellowAnthony et al

1.3 Dispersion

Not Available

Rank: N/A (Overall) ▶

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.509-1.541

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.030

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Mellite Luster

Optical Properties of Mellite are its behavioral responses towards light. While few optical properties can be identified with naked eyes, other require special instruments by the gemologists to identify them. Mellite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.

Mellite luster is the quantity of light the crystal reflects when light is incident on it. Mellite which is commonly found in Brown, Brownish, White, Colorless, Yellow color, is Gemmological Tables (2004) More from other references in nature. It possess Vitreous luster.

Brown Gemstones

Mellite Refractive Index

Optical properties of a Mellite crystal are responsive to the small changes in composition and strain within its crystalline structure. Absolute diligence is therefore necessary during cutting and polishing of the gemstone. All such optical properties are majorly influenced by Physical Properties of Mellite.

As we are well aware, refractive index is the phenomenon which is related to bending of light through a medium (crystal). It is used in qualitative analysis of gemstones by gemologists Besides, few gemstones exhibit property of dual refractive indices. This dual nature is known as Birefringence. The value of Mellite refractive index is 1.509-1.541. Birefringence value for this gem is 0.030. So if you are searching for prominent Brown Gemstones, Mellite gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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