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Montebrasite and Antigorite Optical Properties


Antigorite and Montebrasite Optical Properties


Optical Properties

Luster
Not Available   
Waxy, Silky, Resinous, Greasy   

Pleochroism
Not Available   
pale greenish yellow.   

Dispersion
Not Available   
Not Available   

Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   
Translucent   

Refractive Index
1.578-1.646   
1.530-1.575   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Monoclinic Domatic H-M Symbol (m) Space Group: Cm   

Birefringence
0.020-0.030   
Not Available   

Clarity
TransparentWalter Schumann   
Translucent   

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Montebrasite and Antigorite Optic Character

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

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Montebrasite and Antigorite Transparency

Similar to their colors, Montebrasite 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, Montebrasite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Montebrasite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

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