Garnet

Gahnite

Refractive Index: 1.7943
Abbe Number: 53.7
Crystal System: Isotropic (cubic)
Formation: Natural
Dispersion Data: Measured (published fit)
Fits: 1

Refraction Fits

Fit #1

Shannon / Cauchy

$n$

n

= 1.7943

V_{D}

= 53.7

n^{2} = 1 + \frac{λ ^{2}}{0.4667 ( λ ^{2} - 0.011999 )}