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
Fletcher Mine, Groton, Grafton County, New Hampshire, 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 Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:37152
Long-form Identifier:1:3:37152:8
GUID (UUID V4):0
Nearest other occurrences of Arsenopyrite
4.5km (2.8 miles) ⓘCharles Davis Mine, Groton, Grafton County, New Hampshire, USA
5.1km (3.2 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
5.3km (3.3 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
15.6km (9.7 miles) ⓘBullock Quarry, E.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
15.8km (9.8 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
16.0km (9.9 miles) ⓘPattuck Quarry, Alexandria, Grafton County, New Hampshire, USA
37.3km (23.2 miles) ⓘWest Fairlee, Orange County, Vermont, USA
41.2km (25.6 miles) ⓘElizabeth Mine, South Strafford, Strafford, Orange County, Vermont, USA
41.3km (25.7 miles) ⓘEly Mine, South Vershire, Vershire, Orange County, Vermont, USA
43.0km (26.7 miles) ⓘTilton Sand & Gravel Quarry, Belmont, Belknap County, New Hampshire, USA
References
 
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