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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Strengite from
Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA


09849570017446786376771.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
08282380017446790147395.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
08210020017453283502002.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
03657260017446786386443.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
01007680017446785334013.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
03171180017446786861425.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
01028430017446787646348.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
02273010017446785679572.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
09849570017446786376771.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
06632600017447282613959.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04642300017453283518233.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
03657260017446786386443.jpg
Strengite, etc.

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Strengite
Formula:FePO4 · 2H2O
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Hureaulite
Associated Minerals Based on Photo Data:
Rockbridgeite6
Data
Mineral Data:Click here to view Strengite data
Locality Data:Click here to view Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:28041
Long-form Identifier:1:3:28041:1
GUID (UUID V4):0
Nearest other occurrences of Strengite
0.3km (0.2 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
5.1km (3.2 miles) ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
7.8km (4.8 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
74.5km (46.3 miles) ⓘFitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA
77.9km (48.4 miles) ⓘParker Mountain Mine, Strafford, Strafford County, New Hampshire, 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.
Moore, Paul B. (1973) Pegmatite Phosphates: Descriptive Mineralogy and Crystal Chemistry. The Mineralogical Record, 4 (3) 103-130
NIZAMOFF, James W., SIMMONS, William B., and FALSTER, Alexander U. (2004) PHOSPHATE MINERALOGY AND PARAGENESIS OF THE PALERMO #2 PEGMATITE, NORTH GROTON, NEW HAMPSHIRE Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
 
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