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Liddicoatite
Liddicoatite

Hurlbutite
Hurlbutite



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Liddicoatite
X
Hurlbutite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Strong: dark brown light brownAnthony et al
0.01
Transparent
-9999
-
-
-9999
Transparent
 
Vitreous
-
0.02
Transparent
1.595-1.604
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
0.009
Transparent