×

Scapolite
Scapolite

Foitite
Foitite



ADD
Compare
X
Scapolite
X
Foitite

Scapolite and Foitite Optical Properties

Add ⊕

Optical Properties

Luster

-
Vitreous

Pleochroism

-
Strong: pale lavender dark blueAnthony et al

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
TranslucentAnthony et al, Translucent

Refractive Index

1.540-1.579-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

Birefringence

0.006-0.037-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al

Scapolite and Foitite Optic Character

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

Scapolite and Foitite Transparency

Similar to their colors, Scapolite and Foitite 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, Scapolite is while Scapolite is in appearance.