Materials
/
Vesuvianite
Vesuvianite
Refractive Index
1.7220–1.7301
Abbe Number
48.5–49.9
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Measured (published fit)
Fits
2
Refraction Fits
Fit #1
Shannon / Cauchy
n
n
=
1.7220
V
D
=
49.9
n
400
450
500
550
600
650
700
750
1.710
1.720
1.730
1.740
1.750
1.760
n
2
=
1
+
0.5281
(
λ
2
−
0.012687
)
λ
2
Fit #2
— Specimen fit
Shannon / Cauchy
n
n
=
1.7301
V
D
=
48.5
n
400
450
500
550
600
650
700
750
1.720
1.740
1.760
n
2
=
1
+
0.5213
(
λ
2
−
0.013044
)
λ
2
Absorption Specimens
LED
SUN
I
F
Vesuvianite
Kenya
LED
SUN
I
F
Vesuvianite
Tanzania, Arusha Region, Mount Meru
LED
SUN
I
F
Vesuvianite
Tanzania, Arusha Region, Mount Meru
LED
SUN
I
F
Vesuvianite
Tanzania, Arusha Region, Mount Meru
LED
SUN
I
F
Vesuvianite
Tanzania, Arusha Region, Mount Meru