Aragonite

Refractive Index
1.6600
Abbe Number
60.0
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Approximate (from n, V)
Fits
1

Refraction Fits

Fit #1— Cauchy from (n_D, V_D)

Cauchy approximation

Valid 0.38–0.78 µm

= 1.6600 = 60.0
n4004505005506006507007501.6501.6601.6701.6801.690

Orthorhombic CaCO3 polymorph. GIA dispersion 0.017. Source: GIA / Winchell / Liddicoat gemological tables.

Absorption Specimens

LED
SUN
I
F
 
Aragonite
Czech Republic