Materials
/
Zoisite
Zoisite
Refractive Index
1.6950–1.6954
Abbe Number
62.3
Crystal System
Isotropic (cubic)
Formation
Natural
Dispersion Data
Measured (published fit)
Fits
2
Refraction Fits
Fit #1
Shannon / Cauchy
n
n
=
1.6950
V
D
=
62.4
n
400
450
500
550
600
650
700
750
1.680
1.690
1.700
1.710
1.720
n
2
=
1
+
0.55
(
λ
2
−
0.010182
)
λ
2
Fit #2
— Specimen fit
Shannon / Cauchy
n
n
=
1.6954
V
D
=
62.3
n
400
450
500
550
600
650
700
750
1.680
1.690
1.700
1.710
1.720
n
2
=
1
+
0.5496
(
λ
2
−
0.010189
)
λ
2
Absorption Specimens
LED
SUN
I
F
Zoisite
Not stated
LED
SUN
I
F
Zoisite
Tanzania
LED
SUN
I
F
Zoisite
Tanzania, Arusha Region, Lelatema Mountains (Merelani Hills)
LED
SUN
I
F
Zoisite
Tanzania, Arusha Region, Lelatema Mountains (Merelani Hills)
LED
SUN
I
F
Zoisite
Tanzania, Arusha Region, Lelatema Mountains (Merelani Hills)
LED
SUN
I
F
Zoisite
Tanzania, Arusha Region, Lelatema Mountains (Merelani Hills)