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New London Mine (Linganore Mine), New London, Frederick Co., Maryland, USAi
Regional Level Types
New London Mine (Linganore Mine)Mine
New London- not defined -
Frederick Co.County
MarylandState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 39° 25' 20'' North , 77° 16' 0'' West
Latitude & Longitude (decimal): 39.42222,-77.26667
GeoHash:G#: dr103b85h
Locality type:Mine
Köppen climate type:Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
New Market697 (2017)4.4km
Linganore8,543 (2011)5.4km
Monrovia416 (2011)5.6km
Libertytown950 (2011)7.3km
Spring Ridge5,795 (2011)7.7km


A copper mine located just west of New London. Geological setting is a large fissure vein cutting marble, phyllite and quartzite . Workings featured a shaft 200 feet deep. The mine was opened by 1835 and worked off and on until about 1919.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


17 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Pearre and Heyl (1965)
Baryte
Formula: BaSO4
Reference: Pearre and Heyl (1965)
Bornite
Formula: Cu5FeS4
Reference: Rocks & Min.: 22: 226-227.
Calcite
Formula: CaCO3
Reference: Rocks & Min.: 22: 226-227.
Chalcocite
Formula: Cu2S
Reference: Rocks & Min.: 22: 226-227.
Chalcopyrite
Formula: CuFeS2
Reference: Rocks & Min.: 22: 226-227.
'Chlorite Group'
Reference: Pearre and Heyl (1965)
Cuprite
Formula: Cu2O
Reference: Pearre and Heyl (1965)
Gold
Formula: Au
Reference: Pearre and Heyl (1965)
Hematite
Formula: Fe2O3
Reference: Pearre and Heyl (1965)
Hematite var: Specularite
Formula: Fe2O3
Reference: Pearre and Heyl (1965)
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Rocks & Min.: 22: 226-227.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Rocks & Min.: 22: 226-227.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Pearre and Heyl (1965)
Orthoclase
Formula: K(AlSi3O8)
Reference: Pearre and Heyl (1965)
Pyrite
Formula: FeS2
Reference: Pearre and Heyl (1965)
Quartz
Formula: SiO2
Reference: Pearre and Heyl (1965)
Silver
Formula: Ag
Reference: Pearre and Heyl (1965)
Strontianite
Formula: SrCO3
Reference: Rocks & Min.: 22: 226-227.
Titanite
Formula: CaTi(SiO4)O
Reference: Pearre and Heyl (1965)
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Pearre and Heyl (1965)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Strontianite5.AB.15SrCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
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
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Strontianite14.1.3.3SrCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
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
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Chlorite Group'-
Hematite
var: Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
C StrontianiteSrCO3
OOxygen
O CalciteCaCO3
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O StrontianiteSrCO3
O QuartzSiO2
O BaryteBaSO4
O Hematite (var: Specularite)Fe2O3
O MuscoviteKAl2(AlSi3O10)(OH)2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O TitaniteCaTi(SiO4)O
O OrthoclaseK(AlSi3O8)
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O CupriteCu2O
O HematiteFe2O3
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al OrthoclaseK(AlSi3O8)
SiSilicon
Si QuartzSiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si TitaniteCaTi(SiO4)O
Si OrthoclaseK(AlSi3O8)
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
SSulfur
S BorniteCu5FeS4
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S BaryteBaSO4
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca CalciteCaCO3
Ca TitaniteCaTi(SiO4)O
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe Hematite (var: Specularite)Fe2O3
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe HematiteFe2O3
CuCopper
Cu BorniteCu5FeS4
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
Cu CupriteCu2O
SrStrontium
Sr StrontianiteSrCO3
AgSilver
Ag SilverAg
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cambrian
485.4 - 541 Ma



ID: 3192822
Paleozoic sedimentary rocks

Age: Cambrian (485.4 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Early Cambrian - Neoproterozoic
511 - 1000 Ma



ID: 2455612
quartzite, slate

Age: Neoproterozoic to Cambrian (511 - 1000 Ma)

Comments: gray, purple phyllite/slate; thin,medium bedded; Secondary cleavage folation; beach?

Lithology: Slate

Reference: Davis, A.M., C.S. Southworth, J.E. Reddy, J.S. Schindler. Geologic Map Database of the Washington DC Area Featuring Data from Three 30 x 60 Minute Quadrangles: Frederick, Washington West, and Fredericksburg. U.S. Geological Survey Open-File Report 01-227. [69]

Proterozoic
541 - 2500 Ma



ID: 2943076
Ijamsville Formation

Age: Proterozoic (541 - 2500 Ma)

Stratigraphic Name: Ijamsville Formation

Description: Blue, green, or purple phyllite and phyllitic slate, with interbedded metasiltstone and metagraywacke; flattened pumiceous blebs occur locally.

Comments: secondary unit description from USGS Geologic Names Lexicon (ref MD004): Based on stratigraphic interpretation, the age of the Ijamsville Phyllite is changed to Late Proterozoic(?) and Early Cambrian(?). Consists of dusky blue, grayish blue, very dusky red purple, greenish gray to pale olive phyllite and phyllonite with abundant quartz veins and minor slate. Also contains aphanitic to porphyritic greenstone and yellowish gray, fine- to medium-grained sericitic quartzite. Original map source: In 1995 the Water Resources Division of the U.S. Geological Survey digitized the geologic map of Maryland from the 1968 paper map (Reference MD001). Information about products from the Maryland Geological Survey can be found at http://www.mgs.md.gov/.

Lithology: Major:{phyllite}, Minor:{slate,metasiltstone,metagraywacke}, Incidental:{greenstone, quartzite}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ostrander, C. W. & W. E. Price (1940) Minerals of Maryland: Natural History Society of Maryland , 92 p.
Miller, V. (1947) New London Copper Mine, Maryland: Rocks and Minerals: 22 (3): 226-227.
Heyl, A. & Pearre, N (1965) Copper, zinc, lead, iron cobalt and barite deposits of the Piedmont Upland in Maryland: Maryland Geological Survey: Bulletin 28, 72 p.


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