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0 item @ $0.00  

Augite var. jeffersonite

#PD36295

Augite var. jeffersonite

#PD36295
Availability
Sold
Size
4.5 x 4.5 x 4 cm - Miniature 
Formula
(Ca,Mg,Fe)2(Si,Al)2O6 (RRUFF)
Locality
Franklin, Sussex Co., New Jersey, United States

Ugly but interesting.

Augite

Formula
(Ca,Mg,Fe)2(Si,Al)2O6 
Crystal System
Monoclinic 
Crystal Habit
Massive - Fibrous, Columnar, Granular 
Cleavage
Perfect, Indistinct, None 
Luster
Vitreous - Resinous 
Color
brown green, green, light brown, dark brown, black 
Streak
greenish gray 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
5-6.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Augite
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WebMineral
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