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Covellite
Covellite
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Franklinite
Franklinite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Resinous
Marked
0.08
OpaqueAnthony et al
1.45-2.62
-
Hexagonal
-9999
OpaqueAnthony et al
 
-
-
0.19
Translucent
-9999
-
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
-9999
Translucent

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