Materials
/
Anhydrite
Anhydrite
Refractive Index
1.5856
Abbe Number
74.0
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Measured (published fit)
Fits
1
Refraction Fits
Fit #1
Shannon / Cauchy
n
n
=
1.5856
V
D
=
74.0
n
400
450
500
550
600
650
700
750
1.580
1.590
1.600
1.610
n
2
=
1
+
0.6769
(
λ
2
−
0.008421
)
λ
2
Absorption Specimens
LED
SUN
I
F
Anhydrite
Not stated