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


Locality type:Prospect
Classification
Species:Graftonite
Formula:Fe2+Fe22+(PO4)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Graftonite data
Locality Data:Click here to view Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:38309
Long-form Identifier:1:3:38309:1
GUID (UUID V4):0
Nearest other occurrences of Graftonite
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
18.3km (11.4 miles) ⓘNo. 1 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
25.1km (15.6 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
27.1km (16.8 miles) ⓘMelvin Mountain, Grafton, Grafton County, New Hampshire, USA
30.2km (18.8 miles) ⓘRuggles Mine, Grafton, Grafton County, New Hampshire, USA
62.9km (39.1 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, 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
Moore, Paul B. (1973) Pegmatite Phosphates: Descriptive Mineralogy and Crystal Chemistry. The Mineralogical Record, 4 (3) 103-130
 
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