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Antigorite
Antigorite

Anhydrite
Anhydrite



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Antigorite
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Anhydrite

Antigorite and Anhydrite Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Pearly, Greasy
1.2 Pleochroism
pale greenish yellow.
For violet varieties
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.530-1.5751.570-1.614
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
Orthorhombic
1.8 Birefringence
Not Available0.042-0.044
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Antigorite and Anhydrite Optic Character

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

Similar to their colors, Antigorite and Anhydrite 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.