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Apophyllite
Apophyllite

Antigorite
Antigorite



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Apophyllite
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Antigorite

Apophyllite and Antigorite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Waxy, Silky, Resinous, Greasy

Pleochroism

Dichroic (colorless)
pale greenish yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.530-1.5431.530-1.575
1 3.25
👆🏻

Optic Character

Uniaxial/-
-

Crystal System

tetragonal
Monoclinic Domatic H-M Symbol (m) Space Group: Cm

Birefringence

0.000-0.003-9999
0 0.296
👆🏻

Clarity

Transparent
Translucent

Apophyllite and Antigorite Optic Character

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

Apophyllite and Antigorite Transparency

Similar to their colors, Apophyllite 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, Apophyllite is Transparent and Translucent while Apophyllite is Transparent and Translucent in appearance.