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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Phosphosiderite from
Fletcher Mine, Groton, Grafton County, New Hampshire, USA


09343490017272023258510.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
07472770017272023584535.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
03254840017272023282286.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
07418720017272023607551.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
09910000017370197745271.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
07462500017370197759385.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
00391290017370197766973.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
07418720017272023607551.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
09343490017272023258510.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
05906620017272023615399.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
03254840017272023282286.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
07418720017272023607551.jpg
Phosphosiderite, etc.

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Phosphosiderite
Formula:FePO4 · 2H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Rockbridgeite7
Strengite4
Stewartite3
Leucophosphite3
Bermanite2
Hydroxylherderite1
Beraunite1
Data
Mineral Data:Click here to view Phosphosiderite data
Locality Data:Click here to view Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (10 photos)
Data Identifiers
Mindat Occurrence Record ID:37142
Long-form Identifier:1:3:37142:1
GUID (UUID V4):0
Nearest other occurrences of Phosphosiderite
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
11.9km (7.4 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
77.6km (48.2 miles) ⓘFitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA
84.2km (52.3 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
86.9km (54.0 miles) ⓘLord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
Kreinik, Susanna T. (2022) Phosphate Mineralogy and Paragenesis of the Fletcher Pegmatite, North Groton, New Hampshire. M.S. Thesis, 3039. University of New Orleans. 1-105
 
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