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Antigorite
Antigorite

Beryl
Beryl



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Antigorite
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Beryl

Antigorite and Beryl Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Waxy, Silky, Resinous, Greasy
pale greenish yellow
0.02
Translucent
1.530-1.575
-
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
-9999
Translucent
 
Vitreous, Resinous
Weak to distinct
0.01
Transparent, Transparent to opaque
1.560-1.604
-
Hexagonal
0.0040-0.0070
Transparent

Antigorite and Beryl Optic Character

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

Antigorite and Beryl Transparency

Similar to their colors, Antigorite and Beryl 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, Antigorite is while Antigorite is in appearance.