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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Columbite-(Fe)-Columbite-(Mn) Series from
Parker Mountain Mine, Strafford, Strafford County, New Hampshire, USA


Locality type:Mine
Classification
Species:'Columbite-(Fe)-Columbite-(Mn) Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Columbite-(Fe)-Columbite-(Mn) Series data
Locality Data:Click here to view Parker Mountain Mine, Strafford, Strafford County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:50830
Long-form Identifier:1:3:50830:8
GUID (UUID V4):0
Nearest other occurrences of Columbite-(Fe)-Columbite-(Mn) Series
9.7km (6.0 miles) ⓘChesley Mountain prospect, Farmington, Strafford County, New Hampshire, USA
43.5km (27.0 miles) ⓘHam and Weeks Mine, Wakefield, Carroll County, New Hampshire, USA
65.7km (40.8 miles) ⓘBullock Quarry, E.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
69.5km (43.2 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
76.6km (47.6 miles) ⓘRoutes 125 and 28 interchange road cuts, Andover, Essex County, Massachusetts, USA
77.9km (48.4 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
90.1km (56.0 miles) ⓘSargent Mine, Claremont, Sullivan County, New Hampshire, USA
92.9km (57.7 miles) ⓘBeryl Mountain Quarry, South Acworth, Acworth, Sullivan County, New Hampshire, USA
95.5km (59.4 miles) ⓘRollstone Hill Quarries, Fitchburg, Worcester County, Massachusetts, USA
97.0km (60.3 miles) ⓘGeorge Porter Quarry, Alstead, Cheshire County, New Hampshire, USA
References
Rocks & Minerals 80:4 pp234-241
Cameron, Eugene N., Larrabee, David M., McNair, Andrew H., Page, James J., Stewart, Glen W., Shainin, Vincent E. (1954) Pegmatite Investigations, 1942-45, in New England. Geological Survey Professional Paper 255. US Geological Survey doi:10.3133/pp255
 
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