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
Dunton Gem Quarry, Newry, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Mangangordonite1
Kastningite1
Hydroxylherderite1
Fairfieldite1
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Dunton Gem Quarry, Newry, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:28319
Long-form Identifier:1:3:28319:9
GUID (UUID V4):0
Nearest other occurrences of Siderite
0.1km (0.1 miles) ⓘKinglet Prospect, Newry, Oxford County, Maine, USA
0.2km (0.1 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
0.2km (0.1 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
0.3km (0.2 miles) ⓘNevel Quarry, Newry, Oxford County, Maine, USA
0.3km (0.2 miles) ⓘScotty Quarry, Newry, Oxford County, Maine, USA
0.7km (0.4 miles) ⓘWhitehall #2 Prospect, Newry, Oxford County, Maine, USA
3.3km (2.1 miles) ⓘGeorge Elliot Quarry (North Rumford Mica Quarry), Rumford, Oxford County, Maine, USA
7.1km (4.4 miles) ⓘRed Hill quarries, Rumford, Oxford County, Maine, USA
7.7km (4.8 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
21.9km (13.6 miles) ⓘSongo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
References
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.
 
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