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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

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Latitude & Longitude (WGS84):
41° 20' 48'' North , 73° 14' 11'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
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) (, Booth's Mine (also in Monroe) ( and Lane’s Mine of Trumbull ( 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:

Formula: FeAsS
Reference: Collected- David S. Bernstein, 2011
Formula: CaCO3
Habit: massive
Colour: white
Description: massive, in the quartz veins
Reference: field observations and collections of David Bernstein and Harold Moritz
Formula: PbS
Habit: massive
Colour: gray
Description: Fairly rich vein material in quartz.
Reference: collected by David S. Bernstein-2010.
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)
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
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
Group 4 - Oxides and Hydroxides
Group 5 - Nitrates and Carbonates
Group 9 - Silicates

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
AmBnXp, with (m+n):p = 1:2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks

List of minerals for each chemical element

C CalciteCaCO3
O MicroclineK(AlSi3O8)
O QuartzSiO2
O CalciteCaCO3
Al MicroclineK(AlSi3O8)
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
S ArsenopyriteFeAsS
S GalenaPbS
S PyriteFeS2
K MicroclineK(AlSi3O8)
Ca CalciteCaCO3
Fe ArsenopyriteFeAsS
Fe PyriteFeS2
As ArsenopyriteFeAsS
Pb GalenaPbS


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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