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0 item @ $0.00  

Ankerite

#PD33314

Ankerite

#PD33314
Availability
Sold
Size
5 x 3 x 4 cm - Miniature 
Formula
CaFe2+(CO3)2 (RRUFF)
Locality
Cuyuna Range, Crosby, Crow Wing Co., Minnesota, United States
Tagged
carbonate

Brown rhobohedral Ankerite crystals to 8mm set on a crusty piece of rock. Definitely low on the aestethics scale, but specimens from Minnesota are not too common, I've only seen maybe two!

Ankerite

Formula
CaFe2+(CO3)2 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Massive, Granular 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
brown, brownish yellow, gray, gray brown, white 
Streak
white 
Class
Trigonal - Rhombohedral 
Fracture
Sub Conchoidal 
Hardness
3.5-4 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Ankerite
On Dakota Matrix
Other Available Ankerite
WebMineral
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Mindat
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