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Antigorite
Antigorite

Apophyllite
Apophyllite



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Antigorite
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Apophyllite

Antigorite and Apophyllite Optical Properties

1 Optical Properties
1.1 Luster
Waxy, Silky, Resinous, Greasy
Vitreous, Pearly
1.2 Pleochroism
pale greenish yellow.
Dichroic (colorless)
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent, Translucent
1.5 Refractive Index
1.530-1.5751.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Uniaxial/-
1.7 Crystal System
Monoclinic Domatic H-M Symbol (m) Space Group: Cm
tetragonal
1.8 Birefringence
Not Available0.000-0.003
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Antigorite and Apophyllite Optic Character

Antigorite and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Antigorite and Apophyllite 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 Apophyllite 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. Apophyllite has Uniaxial/- character.

Antigorite and Apophyllite Transparency

Similar to their colors, Antigorite and Apophyllite 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.