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Lane's Copper Mine (Fan Hill Road), Monroe, Fairfield Co., Connecticut, USAi
Regional Level Types
Lane's Copper Mine (Fan Hill Road)Mine
Monroe- not defined -
Fairfield Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 20' 48'' North , 73° 14' 11'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Newtown1,967 (2017)9.3km
Easton7,625 (2017)11.6km
Trumbull36,018 (2017)11.9km
Shelton41,296 (2017)12.4km
Derby12,700 (2017)12.6km


One of four small mines worked from the early-19th century. Sullivan (1985) reported that Ephraim Lane had interests in three properties in Monroe or Huntington. The other three mines are Lane’s (Lead and Silver) Mine (Elm Street - also in Monroe) (http://www.mindat.org/loc-14012.html), Booth's Mine (also in Monroe) (http://www.mindat.org/loc-8810.html) and Lane’s Mine of Trumbull (http://www.mindat.org/loc-23342.html). Unlike the much more famous other three mines, little has been written about the Fan Hill Road mine, which is preserved within Lane's Mine Nature Park and is 1.0 miles NNW of the Elm Street mine. Coffey (1974) shows the location on a map and refers to it as "Lane's copper mine". He states that "The shaft at the scene of the Lane operations (Lane’s Mine Park) was said to have originally been ninety feet deep with a drift in the side of the mine." and that it was worked by the Lane brothers Charles, Lucius, and David. Nearly all other information comes from post-2009 observations.

At this mine, two roughly parallel quartz veins about 1.5 meters apart and dipping about 75-85 degrees west (see site photos) have a trend of about N50W and are exposed within a prominent outcrop of Newtown gneiss with its characteristic, Carlsbad-twinned microcline porphyroblasts. The mine is roughly 20 meters long and 7 meters high, with part of the working underground. Fractures in the gneiss parallel the quartz veins, which are only about 1 to 2 dm thick. Unlike the Elm Street mine, there are numerous outcrops of the Newtown gneiss near the mine in the Nature Park. A smaller working on a second similar vein with a strike of N30W is present in another outcrop about 100 meters away (see site photo ID 319635) and three other smaller workings are present up the hill from the main mine, where the reported shaft appears to be.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


6 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Collected- David S. Bernstein, 2011
Calcite
Formula: CaCO3
Habit: massive
Colour: white
Description: massive, in the quartz veins
Reference: field observations and collections of David Bernstein and Harold Moritz
Galena
Formula: PbS
Habit: massive
Colour: gray
Description: Fairly rich vein material in quartz.
Reference: collected by David S. Bernstein-2010.
Microcline
Formula: K(AlSi3O8)
Habit: subhedral Carlsbad twins
Colour: white
Description: Carlsbad twins in the host gneiss up to about 5 cm long
Reference: Crowley (1968)
Pyrite
Formula: FeS2
Habit: massive to subhedral
Colour: pale brassy
Description: massive to subhedral in the quartz veins
Reference: field observations and collection of David Bernstein and Harold Moritz
Quartz
Formula: SiO2
Habit: massive, prismatic
Colour: white
Description: massive veins with small crystals in scattered, rare openings
Reference: field observations and collection of David Bernstein and Harold Moritz

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Microcline9.FA.30K(AlSi3O8)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O MicroclineK(AlSi3O8)
O QuartzSiO2
O CalciteCaCO3
AlAluminium
Al MicroclineK(AlSi3O8)
SiSilicon
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
SSulfur
S ArsenopyriteFeAsS
S GalenaPbS
S PyriteFeS2
KPotassium
K MicroclineK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
FeIron
Fe ArsenopyriteFeAsS
Fe PyriteFeS2
AsArsenic
As ArsenopyriteFeAsS
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Crowley, William Patrick. (1968), The Bedrock Geology of the Long Hill and Bridgeport Quadrangles, with maps. State Geologic and Natural History Survey of Connecticut, Quadrangle Report 24: 11.
Coffey, Edward Nichols. (1974), A Glimpse of Old Monroe. The Monroe Sesquicentennial Commission; The Bacon Printing Co., Derby, Conn.: 34-37, 93.


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