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Anorthite
Anorthite

Antigorite
Antigorite



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Anorthite
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Antigorite

Anorthite and Antigorite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
colorless.
pale greenish yellow.
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.575-1.5881.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
1.8 Birefringence
0.012-0.013Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Anorthite and Antigorite Optic Character

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

Anorthite and Antigorite Transparency

Similar to their colors, Anorthite 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, Anorthite is Transparent while Anorthite is Transparent in appearance.