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Prasiolite
Prasiolite

Friedelite
Friedelite



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Prasiolite
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Friedelite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Very weak: light green pale greenWalter Schumann
0.01
Transparent, Translucent
1.544-1.553
-
Trigonal
0.009
Transparent
 
-
-
0.04
Translucent
1.627-1.663
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
0.032-0.035
Translucent