×

Pyrophyllite
Pyrophyllite

Hiddenite
Hiddenite



ADD
Compare
X
Pyrophyllite
X
Hiddenite

Pyrophyllite and Hiddenite Optical Properties

Optical Properties

Luster

Pearly
Vitreous

Pleochroism

-
Distinct trichroism: yellow green green blue greenHerve Nicolas Lazzarelli

Dispersion

0.050.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.534-1.6011.657-1.681
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.0500.014-0.016
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Pyrophyllite and Hiddenite Optic Character

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

Pyrophyllite and Hiddenite Transparency

Similar to their colors, Pyrophyllite and Hiddenite 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, Pyrophyllite is Translucent while Pyrophyllite is Translucent in appearance.