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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Pyrite from
Robinson Mine, Concord, Somerset County, Maine, USA


Locality type:Mine
Classification
Species:Pyrite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrite data
Locality Data:Click here to view Robinson Mine, Concord, Somerset County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:42610
Long-form Identifier:1:3:42610:1
GUID (UUID V4):0
Nearest other occurrences of Pyrite
14.1km (8.8 miles) ⓘNorth Anson Gorge Falls, North Anson, Anson, Somerset County, Maine, USA
55.1km (34.2 miles) ⓘBear Pond Road Locality, T3 R5 BKP WKR, Somerset County, Maine, USA
55.5km (34.5 miles) ⓘWinslow Tin mine, Winslow, Kennebec County, Maine, USA
56.2km (34.9 miles) ⓘPreble Hill Mine (Jones Mine), Garland, Penobscot County, Maine, USA
60.5km (37.6 miles) ⓘBean Brook/Piel Brook, Parlin Pond, Parlin Pond Township, Somerset County, Maine, USA
66.0km (41.0 miles) ⓘCatheart Mountain locality, Bradstreet, Somerset County, Maine, USA
66.1km (41.1 miles) ⓘKibby Stream, Kibby, Franklin County, Maine, USA
66.6km (41.4 miles) ⓘEtna Quarry, Etna, Penobscot County, Maine, USA
69.3km (43.0 miles) ⓘRumford Falls, Rumford, Oxford County, Maine, USA
72.0km (44.7 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
References
Emmons, William H. (1910) Some ore deposits in Maine and the Milan mine, New Hampshire. Bulletin 432. US Geological Survey doi:10.3133/b432
 
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