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
Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Siderite
Formula:FeCO3
Comments:"Several lean examples of scorzalite and siderite, labeled "Rock Landing quarry", came from the Charles Thomas collection. They had been obtained when the locality was active in the late 1930s." Schooner (circa 1980s), who also reported augelite, fairfieldite, and graftonite, suggesting they may have really come from the Palermo mine.
Abundance at site:Very Rare
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:830455
Long-form Identifier:1:3:830455:1
GUID (UUID V4):0
Nearest other occurrences of Siderite
6.9km (4.3 miles) ⓘState Route 9 rock cuts, Haddam, Middlesex County, Connecticut, USA
7.9km (4.9 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
8.1km (5.0 miles) ⓘGreat Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
8.3km (5.1 miles) ⓘLinkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
11.0km (6.8 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
18.6km (11.6 miles) ⓘRenz Quarry, Salem, New London County, Connecticut, USA
26.3km (16.4 miles) ⓘState Route 9 - Ellis Street and State Route 72 interchanges (State Route 72 roadcut), New Britain, Hartford County, Connecticut, USA
28.7km (17.8 miles) ⓘArute Field, New Britain, Hartford County, Connecticut, USA
28.9km (18.0 miles) ⓘ135 Fenn Road, Newington, Hartford County, Connecticut, USA
29.0km (18.0 miles) ⓘFenn Road, Newington, Hartford County, Connecticut, USA
References
Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
 
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