Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Siderite from
Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA


06952190017366782435430.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
08434900017366782449082.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
01445140017272044661198.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
08434900017366782449082.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
01445140017272044661198.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
08434900017366782449082.jpg
Siderite, etc.

Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
Locality type:Mine
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Chalcocite2
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Bristol Copper Mine, Bristol, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:665684
Long-form Identifier:1:3:665684:3
GUID (UUID V4):0
Nearest other occurrences of Siderite
13.9km (8.6 miles) ⓘArute Field, New Britain, Hartford County, Connecticut, USA
14.2km (8.8 miles) ⓘ135 Fenn Road, Newington, Hartford County, Connecticut, USA
14.4km (9.0 miles) ⓘFenn Road, Newington, Hartford County, Connecticut, USA
14.5km (9.0 miles) ⓘThe Woodlands, Newington, Hartford County, Connecticut, USA
14.6km (9.1 miles) ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA
31.0km (19.3 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
34.8km (21.6 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
34.8km (21.6 miles) ⓘGreat Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
38.1km (23.7 miles) ⓘRockside Quarry, Mine Hill, Roxbury, Litchfield County, Connecticut, USA
38.5km (23.9 miles) ⓘRoxbury Iron Mine, Mine Hill, Roxbury, Litchfield County, Connecticut, USA
References
Moritz, Harold (n.d.) Personal Communication.
Bateman, Alan Mara (1923) Primary chalcocite: Bristol copper mine, Connecticut. Economic Geology, 18 (2). 122-166 doi:10.2113/gsecongeo.18.2.122
 
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