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Chromite
Chromite
☒

Hercynite
Hercynite
☒



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Chromite
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Hercynite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
none.
0.04
-
2.08-2.16
-
Isometric
-9999
-
 
Vitreous
-
0.03
Translucent
1.80-1.83
-
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
-9999
Translucent

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Brown Gemstones

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Jet lignite
Iddingsite
Iddingsite
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Petrified Wood
Hercynite
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Mottramite
Hercynite Vs Mottramite
Hercynite
Pyrrhotite
Hercynite Vs Pyrrhotite

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