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


05713310017363670016211.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
02462830017272017958909.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04365420017272017966487.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04022630017272017973744.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
06942360017367136837001.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
02462830017272017958909.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04365420017272017966487.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04022630017272017973744.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
06368540017367136843405.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
02462830017272017958909.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04365420017272017966487.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
04022630017272017973744.jpg
Rockbridgeite

Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Rockbridgeite
Formula:(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Xanthoxenite
Associated Minerals Based on Photo Data:
Mitridatite16
Siderite14
Jahnsite-(CaMnFe)12
Strunzite9
Hureaulite8
Laueite7
Vivianite7
Strengite6
Pyrite5
Heterosite5
Beraunite4
Fairfieldite4
Quartz3
Whitmoreite3
Ferrirockbridgeite3
Triphylite3
Tavorite2
Hydroxylherderite2
Jahnsite-(CaMnMn)2
Xanthoxenite2
Whiteite-(MnFeMg)2
Messelite2
Leucophosphite2
Kryzhanovskite2
Gordonite2
Bornite2
Palermoite2
Chalcopyrite2
Barbosalite2
Jahnsite Subgroup1
Ferrostrunzite1
Wolfeite1
Ludlamite1
Data
Mineral Data:Click here to view Rockbridgeite data
Locality Data:Click here to view Palermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (15 photos)
Data Identifiers
Mindat Occurrence Record ID:28035
Long-form Identifier:1:3:28035:0
GUID (UUID V4):0
Nearest other occurrences of Rockbridgeite
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
15.4km (9.6 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
52.6km (32.7 miles) ⓘChandlers Mill Quarry, Newport, Sullivan 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
84.2km (52.3 miles) ⓘChickering Mine, Walpole, Cheshire County, New Hampshire, USA
89.3km (55.5 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland 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.
Moore, Paul B. (1965) Hühnerkobelite crystals from the Palermo No. 1 Pegmatite, North Groton, New Hampshire. American Mineralogist, 50 (5-6) 713-717
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
Kampf, A. R., Falster, A. U., Simmons, W. B., Whitmore, R. W. (2013) Nizamoffite, Mn2+Zn2(PO4)2(H2O)4, the Mn analogue of hopeite from the Palermo No. 1 pegmatite, North Groton, New Hampshire. American Mineralogist, 98 (10) 1893-1898 doi:10.2138/am.2013.4491
 
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