Cuprite

Refractive Index: 2.6696
Abbe Number: 4.1
Crystal System: Isotropic (cubic)
Formation: Natural
Dispersion Data: Measured (published fit)
Fits: 1

Refraction Fits

Fit #1

Shannon / Cauchy

$n$

n

= 2.6696

V_{D}

= 4.1

n^{2} = 1 + \frac{λ ^{2}}{0.2401 ( λ ^{2} - 0.111204 )}

Absorption Specimens

Namibia, Khomas Region (Windhoek District), Seeis (Onganja Mine)