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Mellite
Mellite

Antigorite
Antigorite



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Mellite
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Antigorite

Mellite and Antigorite Optical Properties

Optical Properties

Luster

Vitreous
Waxy, Silky, Resinous, Greasy

Pleochroism

Weak: yellowish brown yellowAnthony et al
pale greenish yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.509-1.5411.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Birefringence

0.030-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Mellite and Antigorite Optic Character

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

Similar to their colors, Mellite and Antigorite 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.