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Antigorite and Rosasite Optical Properties


Rosasite and Antigorite Optical Properties


Optical Properties

Luster
Waxy, Silky, Resinous, Greasy   
Silky, Vitreous   

Pleochroism
pale greenish yellow.   
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Not Available   

Refractive Index
1.530-1.575   
1.672-1.688   

Optic Character
Not Available   
Not Available   

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

Birefringence
Not Available   
0.139-0.143   

Clarity
Translucent   
Not Available   

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Antigorite and Rosasite Optic Character

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

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Antigorite and Rosasite Transparency

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

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