×

Phenakite
Phenakite

Antigorite
Antigorite



ADD
Compare
X
Phenakite
X
Antigorite

Phenakite and Antigorite Optical Properties

Optical Properties

Luster

Vitreous
Waxy, Silky, Resinous, Greasy

Pleochroism

Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
pale greenish yellow

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.650-1.6951.530-1.575
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.016-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Phenakite and Antigorite Optic Character

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

Phenakite and Antigorite Transparency

Similar to their colors, Phenakite 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, Phenakite is while Phenakite is in appearance.