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Arsenic and nickel mine (Nickel Mine Brook), Seymour, New Haven County, Connecticut, USAi
Regional Level Types
Arsenic and nickel mine (Nickel Mine Brook)Mine
SeymourTown
New Haven CountyCounty
ConnecticutState
USACountry

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Latitude & Longitude (WGS84):
41° 22' 35'' North , 73° 5' 3'' West
Latitude & Longitude (decimal):
41.37660,-73.08434
GeoHash:
G#: drk52ums5
GRN:
N28W40
Type:
Mine
KΓΆppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Seymour16,562 (2017)2.3km
Ansonia18,854 (2017)3.4km
Derby12,700 (2017)6.2km
Shelton41,296 (2017)6.7km
Woodbridge9,355 (2017)6.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
New Haven Mineral ClubNew Haven, Connecticut15km
Lapidary and Mineral Society of Central ConnecticutMeriden, Connecticut29km
Danbury Mineralogical SocietyDanbury, Connecticut31km
Bristol Gem & Mineral ClubBristol, Connecticut35km
Mindat Locality ID:
23348
Long-form identifier:
mindat:1:2:23348:9
GUID (UUID V4):
8f9e3309-bf73-43a2-8e73-c2e5c344064a


A small sulfide-bearing quartz vein exposed along a steep brook. Probably last worked in the 1860s when nickel was suddenly in demand by the U. S. Mint and prospecting went on in many locations that have no Ni mineralogy. Most of the sulfides are pyrite and arsenopyrite, with scant if any nickel minerals. Contrary to the mindat exploitable mineral algorithm, nickel was and is not an exploitable commodity here. Many minerals listed by Januzzi lack verification, either physically or analytically and so are listed here as unconfirmed.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


17 valid minerals.

Detailed Mineral List:

β“˜ Arsenic ?
Formula: As
β“˜ Arsenolite ?
Formula: As2O3
β“˜ Arsenopyrite
Formula: FeAsS
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Bismuth
Formula: Bi
β“˜ Breithauptite ?
Formula: NiSb
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Copiapite ?
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
β“˜ Galena
Formula: PbS
β“˜ Galenobismutite ?
Formula: PbBi2S4
β“˜ Hematite
Formula: Fe2O3
β“˜ 'Limonite'
β“˜ LΓΆllingite ?
Formula: FeAs2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Nickeline ?
Formula: NiAs
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Milky Quartz
Formula: SiO2
β“˜ Scorodite
Formula: Fe3+AsO4 · 2H2O
β“˜ Siderite
Formula: FeCO3

Gallery:

FeS2β“˜ Pyrite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Arsenic ?1.CA.05As
β“˜Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Breithauptite ?2.CC.05NiSb
β“˜Nickeline ?2.CC.05NiAs
β“˜Galena2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
β“˜LΓΆllingite ?2.EB.15aFeAs2
β“˜Arsenopyrite2.EB.20FeAsS
β“˜Galenobismutite ?2.JC.25ePbBi2S4
Group 4 - Oxides and Hydroxides
β“˜Hematite4.CB.05Fe2O3
β“˜Arsenolite ?4.CB.50As2O3
β“˜Quartz4.DA.05SiO2
β“˜var. Milky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Copiapite ?7.DB.35Fe2+Fe3+4(SO4)6(OH)2 Β· 20H2O
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Scorodite8.CD.10Fe3+AsO4 Β· 2H2O
Group 9 - Silicates
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
β“˜'Limonite'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

List of minerals for each chemical element

HHydrogen
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ ScoroditeFe3+AsO4 · 2H2O
CCarbon
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ ArsenoliteAs2O3
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Oβ“˜ HematiteFe2O3
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ ScoroditeFe3+AsO4 · 2H2O
Oβ“˜ SideriteFeCO3
Oβ“˜ Quartz var. Milky QuartzSiO2
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Quartz var. Milky QuartzSiO2
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Sβ“˜ GalenaPbS
Sβ“˜ GalenobismutitePbBi2S4
Sβ“˜ PyriteFeS2
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Feβ“˜ HematiteFe2O3
Feβ“˜ LΓΆllingiteFeAs2
Feβ“˜ PyriteFeS2
Feβ“˜ ScoroditeFe3+AsO4 · 2H2O
Feβ“˜ SideriteFeCO3
NiNickel
Niβ“˜ BreithauptiteNiSb
Niβ“˜ NickelineNiAs
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
AsArsenic
Asβ“˜ ArsenoliteAs2O3
Asβ“˜ ArsenopyriteFeAsS
Asβ“˜ ArsenicAs
Asβ“˜ LΓΆllingiteFeAs2
Asβ“˜ NickelineNiAs
Asβ“˜ ScoroditeFe3+AsO4 · 2H2O
SbAntimony
Sbβ“˜ BreithauptiteNiSb
PbLead
Pbβ“˜ GalenaPbS
Pbβ“˜ GalenobismutitePbBi2S4
BiBismuth
Biβ“˜ BismuthBi
Biβ“˜ GalenobismutitePbBi2S4

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

(1917) Useful minerals of the United States. Bulletin Vol. 624. US Geological Survey doi:10.3133/b624 pp.97-101
Schairer, J. F. (1931) The Minerals of Connecticut. State Geological and Natural History Survey Bulletin 51.
Harte, Charles Rufus. (1945), Connecticut's Minor Metals and Her Minerals. Proceedings of the Connecticut Society of Civil. Engineers, 61st Annual Report.
Schooner, Richard. (1961) The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut.
Ryerson, Kathleen H. (1972) Rock Hound's Guide to Connecticut. Pequot Press.
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA.
Weber, Marcelle H. and Earle C. Sullivan. (1995) Connecticut Mineral Locality Index. Rocks & Minerals (Connecticut Issue): 70(6): 399.
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