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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Heterosite from
Fitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA


Locality type:Mine
Classification
Species:Heterosite
Formula:Fe3+(PO4)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heterosite data
Locality Data:Click here to view Fitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:50992
Long-form Identifier:1:3:50992:7
GUID (UUID V4):0
Nearest other occurrences of Heterosite
10.7km (6.6 miles) ⓘChickering Mine, Walpole, Cheshire County, New Hampshire, USA
21.3km (13.2 miles) ⓘSargent Mine, Claremont, Sullivan County, New Hampshire, USA
23.9km (14.9 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, USA
63.6km (39.5 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
66.8km (41.5 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
73.6km (45.7 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
74.4km (46.3 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
74.5km (46.3 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
77.6km (48.2 miles) ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
85.1km (52.9 miles) ⓘEight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
References
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
 
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