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Arsenopyrite with Pyrite

#BAC64023

Arsenopyrite with Pyrite

#BAC64023
Availability
Available
Price
$25.00
Size
4.5 x 2 x 2.5 cm - Miniature 
Formula
FeAsS (RRUFF)
Locality
Panasqueira, Covilha, Amazonas, Brazil
Tagged
sulfide

Bladed crystals of Arsenopyrite to 2cm long with a second generation of cockscomb habit Arsenopyrite. There are also numberous micro, cubic crystals of Pyrite.  It is quite interesting.

Arsenopyrite

Formula
FeAsS 
Crystal System
Monoclinic 
Crystal Habit
Striated, Euhedral Crystals, Prismatic 
Cleavage
one distinct 
Luster
Metallic 
Color
tin white, light steel gray 
Streak
black 
Geological Setting
Widespread. Most commonly found in medium to high temperature veins.  
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
5.5 to 6 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection

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