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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Pyrrhotite from
Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA


01379750017272040191086.jpg
Pyrrhotite

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
06828710017272022228273.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
01150220017367981577615.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
01379750017272040191086.jpg
Pyrrhotite

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
02921540017363687443857.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
01150220017367981577615.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
01379750017272040191086.jpg
Pyrrhotite

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
06828710017272022228273.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
01150220017367981577615.jpg
Pyrrhotite, etc.

Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
Locality type:Mine
Classification
Species:Pyrrhotite
Formula:Fe1-xS
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz2
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Betts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:28171
Long-form Identifier:1:3:28171:1
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
21.8km (13.6 miles) ⓘDavis Pyrite Mine, Rowe, Franklin County, Massachusetts, USA
61.7km (38.3 miles) ⓘPfizer Company Marble Quarry, Canaan, North Canaan, Litchfield County, Connecticut, USA
76.0km (47.2 miles) ⓘWest Torrington nickel mines (Coe Copper Mine; Hodges Mine; Barber Mine; Torrington Nickel Mine), Torrington, Litchfield County, Connecticut, USA
78.9km (49.0 miles) ⓘState Route 140 construction site, Winchendon, Worcester County, Massachusetts, USA
79.6km (49.5 miles) ⓘMonadnock Mountain, Jaffrey, Cheshire County, New Hampshire, USA
80.0km (49.7 miles) ⓘChickering Mine, Walpole, Cheshire County, New Hampshire, USA
83.3km (51.8 miles) ⓘState Routes 8 and 118 interchange, Harwinton, Litchfield County, Connecticut, USA
87.7km (54.5 miles) ⓘOsgood Graphite Mine, Nelson, Cheshire County, New Hampshire, USA
88.1km (54.8 miles) ⓘMount Prospect complex (Prospect Hill complex; Prospect Mountain complex), Litchfield, Litchfield County, Connecticut, USA
88.8km (55.2 miles) ⓘBecker Quarry, Willington, Tolland County, Connecticut, USA
References
"Western Massachusetts Mineral Localities" by Alan Plante, Valley Geology Press, 1992.
Quinn, Alonzo W. (1945). Geology of the Plainfield-Hawley area : with special reference to deposits of manganese and iron minerals (USGS Open-File Report: 45-28)
 
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