×

Friedelite
Friedelite

Beryl
Beryl



ADD
Compare
X
Friedelite
X
Beryl

Friedelite and Beryl Optical Properties

Add ⊕

Optical Properties

Luster

-
Vitreous, Resinous

Pleochroism

-
Weak to distinct

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Translucent
Transparent, Transparent to opaque

Refractive Index

1.627-1.6631.560-1.604
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Hexagonal

Birefringence

0.032-0.0350.0040-0.0070
0 0.296
👆🏻

Clarity

Translucent
Transparent

Friedelite and Beryl Optic Character

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

Friedelite and Beryl Transparency

Similar to their colors, Friedelite and Beryl 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, Friedelite is Translucent while Friedelite is Translucent in appearance.