Pezzottaite

Refractive Index
1.6200
Abbe Number
65.0
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Approximate (from n, V)
Fits
1

Refraction Fits

Fit #1— Cauchy from (n_D, V_D estimated from beryl family)

Cauchy approximation

Valid 0.38–0.78 µm

= 1.6200 = 65.0
n4004505005506006507007501.6101.6201.6301.640

Cs-Li-Be beryl relative. Dispersion estimated from beryl. n_D from published gemological tables; V_D estimated from beryl family because species-specific dispersion is not widely reported. Source: Winchell / GIA / Liddicoat compilations.

Absorption Specimens

LED
SUN
I
F
 
Pezzottaite
Madagascar, Fianarantsoa Province, Ambatovita
LED
SUN
I
F
 
Pezzottaite
Madagascar, Fianarantsoa Province, Ambatovita