Materials
/
Stibiotantalite
Stibiotantalite
Refractive Index
2.4116
Abbe Number
15.7
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Measured (published fit)
Fits
1
Refraction Fits
Fit #1
Shannon / Cauchy
n
n
=
2.4116
V
D
=
15.7
n
400
450
500
550
600
650
700
750
2.300
2.400
2.500
2.600
2.700
n
2
=
1
+
0.235
(
λ
2
−
0.040426
)
λ
2