×

Fayalite
Fayalite

Franklinite
Franklinite



ADD
Compare
X
Fayalite
X
Franklinite

Fayalite and Franklinite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

Faint
-

Dispersion

0.030.19
0.005 1
👆🏻

Transparency

TransparentAnthony et al
Translucent

Refractive Index

1.827-1.879-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

Birefringence

0.042-0.051-9999
0 0.296
👆🏻

Clarity

TransparentAnthony et al
Translucent

Fayalite and Franklinite Optic Character

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

Fayalite and Franklinite Transparency

Similar to their colors, Fayalite and Franklinite 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, Fayalite is TransparentAnthony et al while Fayalite is TransparentAnthony et al in appearance.