Sodalite

Refractive Index: 1.4824–1.4838
Abbe Number: 52.7–79.8
Crystal System: Isotropic (cubic)
Formation: Natural
Dispersion Data: Measured (published fit)
Fits: 4

Refraction Fits

Fit #1

Shannon / Cauchy

$n$

n

= 1.4831

V_{D}

= 79.8

n^{2} = 1 + \frac{λ ^{2}}{0.8524 ( λ ^{2} - 0.007626 )}

Fit #2— Specimen fit

Shannon / Cauchy

$n$

n

= 1.4826

V_{D}

= 61.0

n^{2} = 1 + \frac{λ ^{2}}{0.8592 ( λ ^{2} - 0.009893 )}

Fit #3— Specimen fit

Shannon / Cauchy

$n$

n

= 1.4838

V_{D}

= 52.7

n^{2} = 1 + \frac{λ ^{2}}{0.8603 ( λ ^{2} - 0.011391 )}

Fit #4— Specimen fit

Shannon / Cauchy

$n$

n

= 1.4824

V_{D}

= 58.2

n^{2} = 1 + \frac{λ ^{2}}{0.8606 ( λ ^{2} - 0.010342 )}

Absorption Specimens