×

Prasiolite
Prasiolite

Amblygonite
Amblygonite



ADD
Compare
X
Prasiolite
X
Amblygonite

Prasiolite and Amblygonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Very weak: light green pale greenWalter Schumann
weak to none

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Transparent, Translucent
-

Refractive Index

1.544-1.5531.578-1.646
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Trigonal
Triclinic

Birefringence

0.0090.020-0.030
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Prasiolite and Amblygonite Optic Character

Prasiolite and Amblygonite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Prasiolite and Amblygonite 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 Prasiolite and Amblygonite 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. Amblygonite has Biaxial/+ character.

Prasiolite and Amblygonite Transparency

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