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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Arsenopyrite from
Acton Mine (Acton Consolidated Mine), Acton, York County, Maine, USA


Locality type:Mine
Classification
Species:Arsenopyrite
Formula:FeAsS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arsenopyrite data
Locality Data:Click here to view Acton Mine (Acton Consolidated Mine), Acton, York County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:33050
Long-form Identifier:1:3:33050:3
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
0.1km (0.1 miles) ⓘBoston-Acton mine, Acton, York County, Maine, USA
1.2km (0.8 miles) ⓘDirigo Silver mine, Acton, York County, Maine, USA
4.4km (2.7 miles) ⓘLebanon-Acton mine, Acton, York County, Maine, USA
17.0km (10.6 miles) ⓘBond Mountain prospect, Newfield, York County, Maine, USA
19.5km (12.1 miles) ⓘBergendahl prospect, Newfield, York County, Maine, USA
23.2km (14.4 miles) ⓘMineral Hill Mine, Wakefield, Carroll County, New Hampshire, USA
28.9km (18.0 miles) ⓘParker Mountain Mine, Strafford, Strafford County, New Hampshire, USA
43.1km (26.8 miles) ⓘAdams Point borehole (AP1), Durham, Strafford County, New Hampshire, USA
43.2km (26.9 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
44.3km (27.6 miles) ⓘNational Refuge borehole (NR1), Great Bay National Wildlife Refuge, Newington, Rockingham County, New Hampshire, USA
References
W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41
 
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