×

Astrophyllite
Astrophyllite

Peridot
Peridot



ADD
Compare
X
Astrophyllite
X
Peridot

Astrophyllite and Peridot Optical Properties

Optical Properties

Luster

Greasy, Pearly
Vitreous, Greasy

Pleochroism

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli

Dispersion

0.120.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.678-1.7581.64-1.69
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0500.036
0 0.296
👆🏻

Clarity

Translucent
Transparent

Astrophyllite and Peridot Optic Character

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

Astrophyllite and Peridot Transparency

Similar to their colors, Astrophyllite and Peridot 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.