×

Astrophyllite
Astrophyllite
☒

Caledonite
Caledonite
☒



ADD ⊕
Compare
X
Astrophyllite
X
Caledonite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Greasy, Pearly
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
0.12
Translucent
1.678-1.758
-
Triclinic
0.050
Translucent
 
Vitreous
Weak
0.05
Transparent
1.818-1.909
-
Orthorhombic
0.091
Transparent