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
Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA


Locality type:Prospect
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 Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:38312
Long-form Identifier:1:3:38312:5
GUID (UUID V4):0
Nearest other occurrences of Heterosite
9.5km (5.9 miles) ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
10.7km (6.6 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
10.7km (6.6 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
11.5km (7.1 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
18.3km (11.4 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
25.1km (15.6 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
62.9km (39.1 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, USA
65.8km (40.9 miles) ⓘSargent Mine, Claremont, Sullivan County, New Hampshire, USA
82.8km (51.4 miles) ⓘParker Mountain Mine, Strafford, Strafford County, New Hampshire, USA
83.3km (51.8 miles) ⓘLord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
References
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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