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0 item @ $0.00  

Siderite

#AH51756

Siderite

#AH51756
Availability
Sold
Size
7.5 x 7 x 5 cm - Sm Cabinet 
Formula
FeCO3 (RRUFF)
Locality
Chipman Silver mine, Newbury, Essex Co., Massachusetts, United States
Tagged
carbonate

The specimen looks alot like the specimen from the Roxbury Iron mine in CT in last week's update. But it's not the same locality. This one is from the Chipman Silver mine in Massachusetts. And if you don't know anything about this mine, I don't either. But I do know by looking at Mindat that indeed it was an old silver and the locality does have an assortmant of silver minerals including stephanite and acanthite. And it also has Gold. It appears to be overgrown by the looks of photos on Mindat. If someone out there has some representative specimens from this locality I would be interested in purchasing them. In the article mentioned below, detailed intructions are provided to the mine.

There is a 1970 issue of Rock & Minerals journal written by one John H. Marshall, Jr. Marshall was at the mine 1945, the same year as Arnold Hampson was there. Ol'Arnie probably rode his bike there. Apperantly they mined 4 tons of Galena in 1874 and sunk two shafts on farm land. In 1922 the mine reopened and marketed by a few crooks, which were later arrested and sent to jail. Palache also authored an article in a 1950 issue of R &M as wells as an extensive list on Mindat.

Siderite

Formula
FeCO3 
Crystal System
Trigonal 
Crystal Habit
Tabular, Massive, Botryoidal 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
yellowish brown, brown, gray, yellowish gray, greenish gray 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness
3.5 

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Siderite
On Dakota Matrix
Other Available Siderite
WebMineral
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Mindat
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