Donate now to keep mindat.org alive!Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA

This page is currently not sponsored. Click here to sponsor this page.
Southern end of open pit opposite entrance

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
View from entrance tunnel to rear wall

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
View near back wall looking towards the entrance tunnel

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
Southern end of open pit opposite entrance

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
View from entrance tunnel to rear wall

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
View near back wall looking towards the entrance tunnel

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
Southern end of open pit opposite entrance

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
View from entrance tunnel to rear wall

Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA
 

Detailed Mineral List:


Albite
Formula: Na(AlSi3O8)
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Anglesite
Formula: PbSO4
Description: Small, well-formed crystals were found in partially altered galena (Bjareby, 1965).
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493); Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 914, 986; Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Description: No data or specimens known.
Reference: No published reference. Probably whimsical.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Description: Found on albite crystals (Bjareby, 1965).
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493); Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Beryl
Formula: Be3Al2(Si6O18)
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Beryllonite
Formula: NaBePO4
Description: Found in altering beryl (Bjareby, 1965).
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493); Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Biotite'
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Bismuth
Formula: Bi
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493).
Bornite ?
Formula: Cu5FeS4
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Calcite
Formula: CaCO3
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Chrysoberyl
Formula: BeAl2O4
Reference: Meyers & Stewart, 1956. Geology of NH , Part III., p.19.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Clarkeite
Formula: (Na,Ca,Pb)(UO2)O(OH) · 0-1H2O
Description: Frondel (1956) noted: "Clarkeite has been said to occur in reddish-brown gummite at the Ruggles pegmatite, Grafton Center, New Hampshire, but it was not observed in specimens from this locality examined in the present study." As gummite and other minerals were frequently reported from this and other localities without data, frequently as wishful thinking, the clarkeite folklore is unbelievable given the thoroughness of Frondel's uranium mineral research.
Reference: Discredited by Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Coconinoite ?
Formula: Fe3+2Al2(UO2)2(PO4)4(SO4)(OH)2 · 20H2O
Description: There is a large degree of uncertainty about the locality in NH for this species. Only PRIMARY reference is Young, E., Weeks, A., and Meyrowitz,R., 1966, Coconinoite, A New Uranium Mineral from Utah and Arizona, Am Min v 51:651-663 which states of the species: "... two from unknown localities, one from Wyoming, and one from New Hampshire, which is certainly in a different geologic environment..." The specimen is not elsewhere mentioned or described. There has been a strong folklore belief that the coconinoite mentioned was from the Ruggles Pegmatite because so many uranium minerals were found there and, at one time, were abundant. No subsequent discoveries of New Hampshire coconinoite have been made and the original reference specimen is lost.
Reference: Young, E., Weeks, A., and Meyrowitz,R., 1966, Coconinoite, A New Uranium Mineral from Utah and Arizona, Am Min v 51:651-663
Columbite-(Fe)
Formula: FeNb2O6
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Cryolite
Formula: Na2NaAlF6
Description: misprint for cyrtolite
Curite
Formula: Pb3(UO2)8O8(OH)6 · 3H2O
Description: Incorrect reference. Orange gummite was of particular interest to Frondel (personal communication, 1991) as it contained Mineral A. There was only one worldwide pegmatite (North Carolina) where he did find curite in gummite. Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.
Reference: Seaman, David (1976) Pegmatite Minerals of the World
'Cymatolite'
Reference: Morrill, P. , 1960, New Hampshite Mines and Minerals Localities.
'Feldspar Group'
Reference: Cameron E.N.; Larabee, D.M.; McNair, A.H.; Page. J.J.; Stewart, G.W.; Shainin, V.E. (1954): Pegmatite Investigations 1942-1945, New England. (USGS Prof Paper 255:1-352.)
'Feldspar Group var: Perthite'
Reference: Cameron E.N.; Larabee, D.M.; McNair, A.H.; Page. J.J.; Stewart, G.W.; Shainin, V.E. (1954): Pegmatite Investigations 1942-1945, New England. (USGS Prof Paper 255:1-352.)
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Fourmarierite ?
Formula: Pb(UO2)4O3(OH)4 · 4H2O
Description: "Fourmarierite was doubtfully identified as a minor constituent of gummite from a number of localities, including ... Palermo and Ruggles pegmatites..."
Reference: Frondel, C., 1956, Mineral Composition of Gummite, Am Min v 41: 539-568.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Galena
Formula: PbS
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Goethite
Formula: α-Fe3+O(OH)
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493).
Graftonite ?
Formula: Fe2+Fe2+2(PO4)2
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; Mineralogical Record (1973) 4:103-130
'Gummite'
Habit: massive
Colour: yellow, orange
Reference: No reference listed
Haiweeite ?
Formula: Ca(UO2)2[Si5O12(OH)2] · 6H2O
Habit: crusts
Colour: yellow-green
Description: Three specimens described as: "analyzed, yellowish-green xx-crusts on granite." - Shannon and Son's Minerals catalog. No data or supporting information.
Reference: www.shannonsminerals.com
Kasolite
Formula: Pb(UO2)[SiO4] · H2O
Description: "At the Ruggles pegmatite, kasolite occurs both as a thin outer crust about the orange gummite pseudomorphs for which the locality is noted and as complete pseudomorphs of a rather pourous consistency."
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Lepidolite'
Description: Morrill (1960) reported "lemon yellow" lepidolite. All specimens submitted for testing are ordinary muscovite.
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Lithiophilite
Formula: LiMn2+PO4
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Löllingite
Formula: FeAs2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Manganese Oxides'
Reference: Van King
Marcasite ?
Formula: FeS2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Reference: No reference listed
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Microcline
Formula: K(AlSi3O8)
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493).
Molybdenite
Formula: MoS2
Description: Listed as a "general" mineral for the town of Grafton, only. No specific locality.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Orthoclase
Formula: K(AlSi3O8)
Description: Sample description indicates it was a perthite plus muscovite and therefore not an orthoclase.
Reference: http://speclab.cr.usgs.gov/spectral.lib04/DESCRIPT/orthoclase.HS13.html.
Parsonsite
Formula: Pb2(UO2)(PO4)2
Description: Discovered about 1949 by the late Philip Foster, noted mineral collector of Dover, New Hampshire. Confirmed by Clifford Frondel by XRD.
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 914.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Paulscherrerite
Formula: UO2(OH)2
Reference: Brugger, J., Meisser, N., Etschmann, B., Ansermet, S., Pring, A. (2011): Paulscherrerite from the Number 2 Workings, Mount Painter Inlier, Northern Flinders Ranges, South Australia: “dehydrated schoepite” is a mineral after all. American Mineralogist, 96
Phosphuranylite
Formula: (H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 876, 914.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Psilomelane'
Description: undetermined black stains on rock, sometimes dendritic.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities; Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493). Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Purpurite
Formula: (Mn3+,Fe3+)PO4
Description: Listed by Morrill (1960) for no specific locality in Grafton and subsequently inappropriately claimed for this locality.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Pyrite
Formula: FeS2
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.
Pyrrhotite
Formula: Fe7S8
Description: Not a rare mineral from granite pegmatite. Listed by Morrill (1960) for no specific locality in Grafton and subsequently inappropriately claimed for this locality.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Quartz
Formula: SiO2
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Quartz var: Amethyst
Formula: SiO2
Description: No specimens known. Probably a mis-identified rose quartz.
Quartz var: Rose Quartz
Formula: SiO2
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Morrill, P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Reddingite
Formula: (Mn2+,Fe2+)3(PO4)2 · 3H2O
Reference: Morrill, P, 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Safflorite
Formula: (Co,Ni,Fe)As2
Description: Unbelievable cobalt mineral for this locality. Listed by Morrill (1960) for no specific locality in Grafton and incorrectly claimed for this locality. This is a mineral not found in granite pegmatite anywhere in the world.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Schoepite
Formula: (UO2)8O2(OH)12 · 12H2O
Description: Mineral A of Frondel (1956). "Mineral A is particularly abundant at the Ruggles locality, where it is one of the chief constituents of the orange gummite pseudomorphs after dendritic aggregates of uraninite crystals for which the locality is noted... It occurs as microcrystalline aggregates of a bright-orange to orange-yellow or golden-yellow color. ... The luster varies from dull and earthy to weakly vitreous in hard, translucent aggregates."
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Sillimanite
Formula: Al2(SiO4)O
Description: Found in schist.
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Sklodowskite
Formula: Mg(UO2)2(SiO3OH)2 · 6H2O
Description: Sklodowskite is not related to Mineral B (UM1956-02-SiO:CaHU) = Ca analog of kasolite. Frondel (1956).
Reference: No reference known. Particularly NOT mentioned in this reference! "Frondel, C., 1956, Mineral Composition of Gummite, American Mineralogist, v. 41, p. 539-568."
Soddyite
Formula: (UO2)2SiO4 · 2H2O
Description: "[Soddyite] occurs abundantly at the Ruggles pegmatite..., as complete pseudomorphs after uraninite. These are yellow to straw-yellow in color, with a dense to almost pulverulent consistency, and are composed of minute shreds and fibers of soddyite admixed with small amounts of uranophane."
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Description: Found in metamorphic rocks. Not found in the Ruggles pegmatite.
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255
Topaz
Formula: Al2(SiO4)(F,OH)2
Description: No specimens known.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493).
Triphylite
Formula: LiFe2+PO4
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 667. Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; Mineralogical Record (1973) 4:103-130
'UM1956-02-SiO:CaHU'
Formula: CaUSiO6•H2O
Reference: Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568.
Uraninite
Formula: UO2
Description: Large quantities of uraninite and its alteration to other minerals have been found here.
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; USGS Prof Paper 255; Am Min (1938) 23:334-341
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.
Uranospinite
Formula: Ca(UO2)(AsO4)2 · 10H2O
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Vandendriesscheite
Formula: PbU7O22 · 12H2O
Description: "Vandendriesscheite occurs as dense microcrystalline aggregates. The color varies from yellow-orange, brownish orange, and orange to orange-red."
Reference: Clifford Frondel (1956) Mineral Composition of Gummite, American Mineralogist 41:539-568.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Zircon
Formula: Zr(SiO4)
Reference: Morrill. P., 1960, New Hampshire Mines and Mineral Localities.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sterrett, D. (1914). Some deposits of Mica in the United States, USGS Bulletin 580-F: 80-81.
Elwell, Wilbur J. (1936): A Mineralogical Trip Through New England. Rocks and Minerals: 11(3): 36-7.
Shaub, Benjamin M. (1937): Age of the Uraninite from the Ruggles Mine, Grafton Center, New Hampshire, Science: 86: 156.
Shaub, Benjamin M. (1938): The Occurrence, Crystal Habit, and Composition of the Uraninite from the Ruggles Mine, near Grafton Center, New Hampshire, American Mineralogist: 23: 334-341.
Frondel, Clifford (1950): Sudies of Uranium Minerals (I): Parsonsite and Randite, American Mineralogist: 35: 235-250.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 876, 914, 986.
Cameron E.N.; Larabee, D.M.; McNair, A.H.; Page. J.J.; Stewart, G.W.; Shainin, V.E. (1954): Pegmatite Investigations 1942-1945, New England, USGS Professional Paper 255: 1-352.
Tilden, Paul M. (1955) America's First Mica Mine?, Rocks and Minerals: 30: 499-500.
Frondel, C. (1956): Mineral composition of gummite. American Mineralogist: 41: 539-568.
Morrill, P. (1960), New Hampshire Mines and Mineral Localities.
Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7, Rocks & Minerals: 40: 491-493.
Gregory, G. (1971), The Ruggles Feldspar - Mica Mine, Grafton, New Hampshire, Rocks & Minerals: 46: 12-15.
Sweeney, Harry M. (1975), Field Trip: New Hampshire: The Treasures of Ruggles Mine, Rock & Gem: 5(2): 59-61.
Cushing, Kenneth R. (1992). Isinglass, Timber, and Wool: A History of the Town of Grafton, N.H. 1761-1992.
Korzeb, Stanley L.; Foord, Eugene E. and Lichte, Frederick E. (1997): The chemical evolution and paragenesis of uranium minerals from the Ruggles and Palermo granitic pegmatites, New Hampshire, Canadian Mineralogist: 35: 135-144.
Foord, Eugene E.; Korzeb, Stanley L.; Lichte, Frederick E.; and Fitzpatrick, Joan J. (1997): Additional Studies on Mixed Uranyl-Oxide Hydrate Alteration Products of Uraninite From the Palermo and Ruggles Granitic Pegmatites, Grafton County, New Hampshire, Canadian Mineralogist: 35: 145-151.
Davis, F. E. (2013): U.S. Mica Industry Pioneers: The Ruggles and Bowers Families, (Charleston, SC: CreateSpace.com / Amazon.com).

External Links


Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 24, 2018 01:53:41 Page generated: January 15, 2018 13:09:27
Go to top of page