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Ham and Weeks Mine (Weeks Feldspar Quarry; Ham-Weeks pegmatite), Wakefield, Carroll Co., New Hampshire, USAi
Regional Level Types
Ham and Weeks Mine (Weeks Feldspar Quarry; Ham-Weeks pegmatite)Mine
Wakefield- not defined -
Carroll Co.County
New HampshireState
USACountry

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Key
Latitude & Longitude (WGS84):
43° 40' 14'' North , 71° 0' 29'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Ossipee4,655 (2017)8.9km
Parsonsfield1,647 (2017)8.9km
Effingham1,356 (2017)10.1km
Wakefield4,705 (2017)11.5km
Sanbornville1,056 (2017)13.1km


Granite pegmatite. Opened in 1877. Mined for mica, feldspar, and beryl.

The Ham and Weeks Educational and Recreational Area is currently operated by the Maine Mineralogical and Geological Society (MMGS). The site is leased by MMGS, and access is limited to MMGS members. According to the MMGS website:

"Ham and Weeks Mine was first developed by the Mineral Hill Mining Corporation, formed August 7, 1877, by Samuel B. Ames. Shares were sold to buy equipment and mining rights in the area. Originally called the Mica Mine, 2 or 3 acres were worked and the mica was sold for use in stove windows and lamp chimneys. Operations didn’t last too long. As the pit depth increased, an underground spring flooded the pit, and pumps couldn’t keep up with the flow. The original pit is believed to be south of the present pit. The mine was inactive until 1914 or 1915, when the present pit was opened for mica to be used in gas masks for soldiers in WW I. The mica was taken by horse-drawn carts to East Wakefield and loaded unto trains. The mine was closed after a year or two, then re-opened a third time in the 1930’s, when mica was used as electrical insulation in early crystal radio sets; beryl was also reportedly mined for war use."

Cameron et. al. (1954) described the deposit, referred to as the Weeks Feldspar Quarry (named for the owner, Raymond B. Weeks of Burleysville [sic], N.H.): "in the 1920's...feldspar, scrap mica, and beryl were recovered. In the early 1930's, a Mr. Day, Kittery, Maine, operated the quarry for feldspar and scrap mica...In September 1942, J. D. Bardill, District Engineer for the Bureau of Mines, arranged a sampling program under the direction of E. E. Maillot and W. H. Evans. The Bureau of Mines quarried beryl from the north and west sides of the pit, dug 10 small pits and trenches, and drilled 5 horizontal jackhammer holes 12 to 16 feet long in an effort to locate the contacts of the pegmatite. They also pumped out the flooded part of the pit."

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


26 valid minerals. 2 erroneous literature entries.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.52; USGS Prof Paper 255
Albite var. Cleavelandite
Formula: Na(AlSi3O8)
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.76; USGS Prof Paper 255
Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Description: Cameron, Eugene N. et. al. (1954), p. 107, reported plagioclase with An=19% in border zone of the pegmatite, which would make it oligoclase.
Reference: Cameron, Eugene N.; and others (1954) Pegmatite Investigations, 1942-45, in New England. ( USGS Professional Paper 255).
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Van King; USGS Prof Paper 255
Baddeleyite
Formula: ZrO2
Reference: XRD Czech Geol Survey Pequa Mineral Co specimen
Beryl
Formula: Be3Al2(Si6O18)
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.76; USGS Prof Paper 255
Chalcopyrite
Formula: CuFeS2
Reference: Rocks & Min. 80:256 (2005)
Chrysoberyl
Formula: BeAl2O4
Colour: yellow to apple-green
Reference: Chayes, Felix (1944): Occurence of Chrysoberyl at Wakefield, Carroll County, New Hampshire (American Mineralogist 29:320-323).
Columbite-(Fe)
Formula: Fe2+Nb2O6
Reference: Rocks & Min. 80:256 (2005)
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p. 19; USGS Prof Paper 255
Columbite-(Mn)
Formula: Mn2+Nb2O6
Reference: Rocks & Min. 80:256 (2005)
Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: The indicolite reported from this locality is dark blue schorl not elbaite.
'Feldspar Group'
Reference: USGS Prof Paper 255
'Feldspar Group var. Perthite'
Reference: USGS Prof Paper 255
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Rocks & Min. 80:256 (2005)
Fluorapatite var. Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Reference: "Dan Costian" Collection
Fluorite
Formula: CaF2
Reference: Rocks & Min. 80:256 (2005)
'Fluor-uvite-Uvite Series'
Reference: USGS Prof Paper 255
'Indicolite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.76
Ishikawaite ?
Formula: U4+Fe2+Nb2O8
Description: Four suspected specimens of ishikawaite were analyzed and found to be uraninite (in 2 cases) or samarskite-(Y) (in 2 cases). Tom Mortimer, pers. comm. 2011.
Reference: Rocks & Min. 80:246 (2005)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Rocks & Min. 80:256 (2005)
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Rocks & Min. 80:256 (2005)
'Manganese Oxides'
Reference: E. L. Clopton collection; "Dan Costian" Collection
'Manganese Oxides var. Manganese Dendrites'
Reference: P. Cristofono collection, 2012
Microcline
Formula: K(AlSi3O8)
Reference: Rocks & Min. 80:256 (2005)
Molybdenite
Formula: MoS2
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.76; USGS Prof Paper 255
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Gallup, 1970. Granite State Mineral Collecting; USGS Prof Paper 255
Opal
Formula: SiO2 · nH2O
Reference: P. Cristofono collection (ex. Gene Bearss)
Opal var. Hyalite
Formula: SiO2 · nH2O
Reference: P. Cristofono collection (ex. Gene Bearss)
'Parisite' ?
Reference: Rocks & Min. 80:256 (2005)
Phenakite
Formula: Be2SiO4
Reference: Rocks & Min. 80:256 (2005)
Pyrite
Formula: FeS2
Reference: Rocks & Min. 80:256 (2005)
Pyrolusite
Formula: Mn4+O2
Description: No pyrolusite has ever been found in a dendrite or in a pegmatite.
Reference: Gallup, 1970. Granite State Mineral Collecting
Quartz
Formula: SiO2
Reference: Rocks & Min. 80:256 (2005); USGS Prof Paper 255
Samarskite-(Y)
Formula: YFe3+Nb2O8
Description: Two specimens of suspected ishikawaite were analyzed by Fred Davis and found to be samarskite-(Y). (Tom Mortimer, pers. comm. 2011)
Reference: Nashua Mineral Society Display Catalog, 1995; USGS Prof Paper 255; Tom Mortimer, pers. comm. 2011
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: P. Cristofono collection, 2014
Synchysite-(Ce) ?
Formula: CaCe(CO3)2F
Description: No data at website
Reference: T Mortimer (mindatnh.org)
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Meyers & Stewart (1956). The Geology of NH: Part III Minerals and Mines. p.76
Uraninite
Formula: UO2
Reference: Tom Mortimer/Fred Davis collections, 2011
Vesuvianite ?
Formula: Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Description: Occurence questioned by Smith and Bearss (1991).
Reference: Gallup, 1970. Granite State Mineral Collecting
Zircon
Formula: Zr(SiO4)
Reference: Rocks & Min. 80:256 (2005)
Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]
Reference: Bearss, Gene T. (1984). The Weeks (Ham) Mine, Wakefield, NH (Micromounters of New England newsletter)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Baddeleyite4.DE.35ZrO2
Chrysoberyl4.BA.05BeAl2O4
Columbite-(Fe)4.DB.35Fe2+Nb2O6
Columbite-(Mn)4.DB.35Mn2+Nb2O6
Ishikawaite ?4.DB.25U4+Fe2+Nb2O8
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var. Hyalite4.DA.10SiO2 · nH2O
Pyrolusite ?4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Samarskite-(Y)4.DB.25YFe3+Nb2O8
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Synchysite-(Ce) ?5.BD.20cCaCe(CO3)2F
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var. Mn-bearing Fluorapatite8.BN.05(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var. Cleavelandite9.FA.35Na(AlSi3O8)
var. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Almandine9.AD.25Fe2+3Al2(SiO4)3
Beryl9.CJ.05Be3Al2(Si6O18)
Elbaite ?9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phenakite9.AA.05Be2SiO4
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Vesuvianite ?9.BG.35Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Zircon9.AD.30Zr(SiO4)
var. Cyrtolite9.AD.30Zr[(SiO4),(OH)4]
Unclassified Minerals, Rocks, etc.
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Feldspar Group'-
'var. Perthite'-
'Fluor-uvite-Uvite Series'-
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
'Manganese Oxides'-
'var. Manganese Dendrites'-
'Parisite' ?-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Baddeleyite4.4.14.1ZrO2
Pyrolusite ?4.4.1.4Mn4+O2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Ishikawaite ?8.1.4.1U4+Fe2+Nb2O8
Samarskite-(Y)8.1.11.1YFe3+Nb2O8
AB2O6
Columbite-(Fe)8.3.2.2Fe2+Nb2O6
Columbite-(Mn)8.3.2.4Mn2+Nb2O6
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Synchysite-(Ce) ?16a.1.3.1CaCe(CO3)2F
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Vesuvianite ?58.2.4.1Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Elbaite ?61.3.1.8Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var. Cleavelandite
-Na(AlSi3O8)
var. Oligoclase-(Na,Ca)[Al(Si,Al)Si2O8]
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Feldspar Group'-
'var. Perthite'-
'Fluor-uvite-Uvite Series'-
Fluorapatite
var. Mn-bearing Fluorapatite
-(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
'Indicolite'-A(D3)G6(T6O18)(BO3)3X3Z
'Manganese Oxides'-
'var. Manganese Dendrites'-
Opal
var. Hyalite
-SiO2 · nH2O
'Parisite' ?-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
Zircon
var. Cyrtolite
-Zr[(SiO4),(OH)4]

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H MalachiteCu2(CO3)(OH)2
H Zircon var. CyrtoliteZr[(SiO4),(OH)4]
H Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
H Opal var. HyaliteSiO2 · nH2O
H OpalSiO2 · nH2O
H VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
H ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be ChrysoberylBeAl2O4
Be BerylBe3Al2(Si6O18)
Be PhenakiteBe2SiO4
BBoron
B IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
B ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C MalachiteCu2(CO3)(OH)2
C Synchysite-(Ce)CaCe(CO3)2F
OOxygen
O ChrysoberylBeAl2O4
O Samarskite-(Y)YFe3+Nb2O8
O AlbiteNa(AlSi3O8)
O Albite var. CleavelanditeNa(AlSi3O8)
O BaddeleyiteZrO2
O IndicoliteA(D3)G6(T6O18)(BO3)3X3Z
O BerylBe3Al2(Si6O18)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Columbite-(Fe)Fe2+Nb2O6
O Columbite-(Mn)Mn2+Nb2O6
O FluorapatiteCa5(PO4)3F
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O MicroclineK(AlSi3O8)
O PhenakiteBe2SiO4
O QuartzSiO2
O ZirconZr(SiO4)
O AlmandineFe32+Al2(SiO4)3
O UraniniteUO2
O Zircon var. CyrtoliteZr[(SiO4),(OH)4]
O Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
O SpessartineMn32+Al2(SiO4)3
O Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
O Opal var. HyaliteSiO2 · nH2O
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O OpalSiO2 · nH2O
O IshikawaiteU4+Fe2+Nb2O8
O VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
O Synchysite-(Ce)CaCe(CO3)2F
O ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
O PyrolusiteMn4+O2
FFluorine
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
F Synchysite-(Ce)CaCe(CO3)2F
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite var. CleavelanditeNa(AlSi3O8)
Na Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Na ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
AlAluminium
Al ChrysoberylBeAl2O4
Al AlbiteNa(AlSi3O8)
Al Albite var. CleavelanditeNa(AlSi3O8)
Al BerylBe3Al2(Si6O18)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al MicroclineK(AlSi3O8)
Al AlmandineFe32+Al2(SiO4)3
Al Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Al SpessartineMn32+Al2(SiO4)3
Al VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Al ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Albite var. CleavelanditeNa(AlSi3O8)
Si BerylBe3Al2(Si6O18)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si MicroclineK(AlSi3O8)
Si PhenakiteBe2SiO4
Si QuartzSiO2
Si ZirconZr(SiO4)
Si AlmandineFe32+Al2(SiO4)3
Si Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Si Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Si SpessartineMn32+Al2(SiO4)3
Si Opal var. HyaliteSiO2 · nH2O
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si OpalSiO2 · nH2O
Si VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Si ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
PPhosphorus
P FluorapatiteCa5(PO4)3F
P Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
SSulfur
S MolybdeniteMoS2
S ChalcopyriteCuFeS2
S PyriteFeS2
ClChlorine
Cl Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Ca Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Ca VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Ca Synchysite-(Ce)CaCe(CO3)2F
MnManganese
Mn Columbite-(Mn)Mn2+Nb2O6
Mn SpessartineMn32+Al2(SiO4)3
Mn Fluorapatite var. Mn-bearing Fluorapatite(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Mn PyrolusiteMn4+O2
FeIron
Fe Samarskite-(Y)YFe3+Nb2O8
Fe ChalcopyriteCuFeS2
Fe Columbite-(Fe)Fe2+Nb2O6
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe AlmandineFe32+Al2(SiO4)3
Fe IshikawaiteU4+Fe2+Nb2O8
Fe VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
YYttrium
Y Samarskite-(Y)YFe3+Nb2O8
ZrZirconium
Zr BaddeleyiteZrO2
Zr ZirconZr(SiO4)
Zr Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nb Samarskite-(Y)YFe3+Nb2O8
Nb Columbite-(Fe)Fe2+Nb2O6
Nb Columbite-(Mn)Mn2+Nb2O6
Nb IshikawaiteU4+Fe2+Nb2O8
MoMolybdenum
Mo MolybdeniteMoS2
CeCerium
Ce Synchysite-(Ce)CaCe(CO3)2F
UUranium
U UraniniteUO2
U IshikawaiteU4+Fe2+Nb2O8

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Pennington, Mary Engle (1895). Derivatives of Columbium and Tantalum (Analysis of Wakefield Columbite). Journal of the American Chemical Society:: 1,(Part 1): 38-66.
Bardill (1943): Weeks Feldspar Quarry, USBM War Minerals Report 81.
Chayes, Felix (1944): Occurence of Chrysoberyl at Wakefield, Carroll County, New Hampshire, American Mineralogist: 29: 320-323.
Cameron, Eugene N.; and others (1954) Pegmatite Investigations, 1942-45, in New England. USGS Professional Paper 255.
Morong, Dana (1983). New Hampshire Mineral Localities, Durham, NH (privately published): 14.
Bearss, Gene T. (1984). The Weeks (Ham) Mine, Wakefield, NH, Micromounters of New England newsletter.
Smith, Arthur and Bearss, Gene (1991): The Weeks Pegmatite Mine, Wakefield, Carroll County, New Hampshire, Rocks & Minerals: 66: 129-135.
Smith, Arthur (2002): Hunting for Uranium Minerals in the Hamm-Weeks Pegmatite, Wakefield, Carroll County, New Hampshire. Mineral News: 18(4)(April).

External Links

http://www.micromountersofnewengland.org/pdfs/weeks-ham-mine.pdf [Bearss, Gene T. (1984). The Weeks (Ham) Mine, Wakefield, NH; Micromounters of New England newsletter]


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