SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

American Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit), Bridgewater Township, Somerset Co., New Jersey, USAi
Regional Level Types
American Mine (Alpha Copper Mine; Bridgewater Mine; Somerville Mine; Somerville deposit)Mine
Bridgewater TownshipTownship
Somerset Co.County
New JerseyState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
40° 36' 54'' North , 74° 37' 0'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Green Knoll6,200 (2017)1.7km
Bridgewater44,464 (2017)3.1km
Somerville12,202 (2017)4.6km
Martinsville11,980 (2017)5.1km
Raritan8,031 (2017)5.2km


A Cu occurrence/mine located about 3 miles North of Somerville. Owned by the American Copper Mine Co. Some mining was begun well before the Revolutionary War. Woodward (1944) reported that about 1900 pounds of copper was recovered prior to 1754. Restarted 1821 and closed about 1840, then reopened 1881 and closed 1910. A suburban house now occupies the site.

Featured the "Spencer slope" (1,300 feet long to the 600 foot level). The Mine exploited a conformable, copper-bearing horizon, generally 18-24 inches thick, in the uppermost Passaic formation immediately beneath the Orange Mountain basalt. Copper occurred mostly as thin veins, irregular small masses and sheets of native copper. The mineralized horizon has been darkened, mainly by recrystallization of hematite. This rock has been referred to as a hornfels but its origin appears to be due to hydrothermal fluids and not thermal recrystallization. Bleaching of the sediments almost always accompanies native copper. Chalcocite is much subordinate to native copper. It generally occurs in later veinlets that crosscut the copper and associated bleaching. Bleaching is rarely associated with chalcocite deposition but has been observed. The geology of the American Mine is very similar to that of the Chimney Rock Mine (Cummings, 1998).

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


14 valid minerals.

Detailed Mineral List:

Atacamite
Formula: Cu2(OH)3Cl
Reference: Rocks & Min.: 24:27-29.
Calcite
Formula: CaCO3
Reference: NJ State Geol. Ann. Rpt. (1902):132; (1906): 148; Rocks & Min.: 24:27-29.
Chalcocite
Formula: Cu2S
Reference: NJ State Geol. Ann. Rpt. (1902):135; (1906): 147; Rocks & Min.:63:130; Rocks & Min.: 24:27-29.
Chalcopyrite
Formula: CuFeS2
Reference: NJ State Geol. Ann. Rpt. (1906): 147
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: NJ State Geol. Ann. Rpt. (1902):130; (1906): 147; Rocks & Min.: 24:27-29.
Copper
Formula: Cu
Reference: NJ State Geol. Ann. Rpt.(1901):151-152; (1906): 147; Geol. Survey of NJ Bull. 50, Lewis & Kümmel (1940); Rocks & Min.: 24:27-29.
Cuprite
Formula: Cu2O
Reference: NJ State Geol. Ann. Rpt. (1902):130-131; (1906): 147; Rocks & Min.: 24:27-29.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.
'Feldspar Group'
Colour: Green.
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: NJ State Geol. Ann. Rpt. (1902):130; (1906): 147; Rocks & Min.:63:130.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: NJ State Geol. Ann. Rpt. (1906): 148.
Pyrite
Formula: FeS2
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.
Quartz
Formula: SiO2
Reference: NJ State Geol. Ann. Rpt. (1906): 148.
Quartz var:
Reference: Rocks & Min.: 24:27-29.
Quartz var:
Formula: SiO2
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.
Quartz var:
Colour: Red.
Reference: Rocks & Min.: 24:27-29.
Silver
Formula: Ag
Reference: NJ State Geol. Ann. Rpt. (1906): 147
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: The Minerals of NYC & Its Environs, NY Min. Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 35.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
Atacamite3.DA.10aCu2(OH)3Cl
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Unclassified Minerals, Rocks, etc.
'Feldspar Group'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 10 - OXYHALIDES AND HYDROXYHALIDES
A2(O,OH)3Xq
Atacamite10.1.1.1Cu2(OH)3Cl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Feldspar Group'-
Quartz
var: Agate
-SiO2
var: Chalcedony-SiO2
var: Jasper-SiO2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H PrehniteCa2Al2Si3O10(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H AtacamiteCu2(OH)3Cl
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
OOxygen
O MalachiteCu2(CO3)(OH)2
O CupriteCu2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CalciteCaCO3
O QuartzSiO2
O PrehniteCa2Al2Si3O10(OH)2
O Quartz (var: Chalcedony)SiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O LaumontiteCaAl2Si4O12 · 4H2O
O AtacamiteCu2(OH)3Cl
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si QuartzSiO2
Si PrehniteCa2Al2Si3O10(OH)2
Si Quartz (var: Chalcedony)SiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si LaumontiteCaAl2Si4O12 · 4H2O
SSulfur
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S PyriteFeS2
ClChlorine
Cl AtacamiteCu2(OH)3Cl
CaCalcium
Ca CalciteCaCO3
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca LaumontiteCaAl2Si4O12 · 4H2O
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CuCopper
Cu ChalcociteCu2S
Cu MalachiteCu2(CO3)(OH)2
Cu CopperCu
Cu CupriteCu2O
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu ChalcopyriteCuFeS2
Cu AtacamiteCu2(OH)3Cl
AgSilver
Ag SilverAg

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
New Jersey State Geologist Annual Report (1906): 146-148 (as the Bridgewater Mine).
Manchester, J.G. (1931), Minerals of New York City & Its Environs, New York Mineralogical Club Bulletin Vol 3, No. 1: 35.
Rocks & Minerals (1949): 24: 27-29.
Rocks & Minerals (1988): 63: 130.
Woodward, Herbert P. (1944), Copper Mines and Mining in New Jersey, New Jersey Geological Survey Bulletin 57.
Cummings, W. L. (1998), Geology of the Chimney Rock Copper Occurrence, A Deposit Typical of the Watchung Basalts: In Puffer, J.H. Ed., The Economic Geology of Central New Jersey, Field Guide and Proceedings, Geological Association of New Jersey, Fifteenth Annual Meeting: 29 – 49.

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.
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.8.12 05:39:02 Page generated: 2020.6.18 00:39:57
Go to top of page