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Agrellite
Agrellite
☒

Cavansite
Cavansite
☒



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Agrellite
X
Cavansite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly
colorless.
0.01
-
1.567
-
Triclinic
0.014
-
 
Vitreous, Pearly
Visible: X=Z= colorless Y= blue
0.04
-
1.542
-
Orthorhombic
0.009
-