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Eldorado Copper Mine (Coe Iron mine; Moore Iron mine), Madoc Township, Madoc area, Hastings Co., Ontario, Canadai
Regional Level Types
Eldorado Copper Mine (Coe Iron mine; Moore Iron mine)Mine
Madoc TownshipTownship
Madoc areaArea
Hastings Co.County
OntarioProvince
CanadaCountry

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Key
Lock Map
Latitude & Longitude (WGS84):
44° 35' 8'' North , 77° 31' 41'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Quinte West42,697 (2010)44.8km
Belleville49,454 (2018)48.0km


GEOLOGY: (Malczak,J.et. al.(1985)
"Base Metal, Molybdenum and Precious Metal Deposits of the Madoc-Sharbot Lake Area. Southeastern Ontario. Ontario Geological Survey, Open File Report 5548) at the contact with a very small granitic intrusion related to the Deloro granite. Host rocks at the deposit strike east-west and dip steeply to the north. Carter described the host rock as a white, massive, aphanitic dolomitic marble. Weathered surfaces are reddish brown and the rock contains numerous quartz veins with minor ankerite and pyrite. Carter described the intrusion as a pink, fine-grained granite and the contact zone at the north end of the deposit as a massive magnetite-talccarbonate skarn.
Mineralization: This deposit was originally mined for hematite under the name of the Coe Iron Mine.
Corkhill (1906, p.90) states:
"This mine which originally opened for iron, but which has for the last couple of years been worked for copper... The ore is chalcopyrite and was found at a depth of 75 feet displacing the hematite, which constituted the ore body to this depth. Some very fine he ore. The north or hanging wall of the ore body is granite, and the south or foot wall crystalline limestone. The ore body runs east and west in a wide open fissure in the contact between the granite and limestone...The ore body, which occurs as a shoot, dips to the northeast."
In the next report, Corkhill (1907, p.76) states: "...At a depth of 75 feet the vertical shaft was discontinued and all mining has since been confined to sinking on the ore body. The ore body occurs in a shoot
about 36 feet in length by 7 to 10 feet in width."

DEVELOPMENT HISTORY (Malczak,J.et. al.1985)
Base Metal, Molybdenum and Precious Metal Deposits of the Madoc-Sharbot Lake Area. Southeastern Ontario. Ontario Geological Survey, Open File Report 5548) 1901-1903: The Coe or Moore iron mine was opened. Hematite ore was mined from an open pit to a depth of 75 feet.
1903-1906: The deposit was renamed the Eldorado Copper Mine and copper ore was mined from the deposit from a shaft below the 75 foot level of the pit.
1906: The shaft was abandoned and ore was extracted from an open cut to a depth of 300 feet. The Medina Gold Mining Company erected a copper smelter on the property.
1907: The Eldorado Copper Mine was owned by the Ontario Copper Company. Mining activities ceased in this year.
1956: Picton Uranium Mines Limited dewatered the shaft and re-examined the deposit.

"The first copper smelter in eastern Ontario was blown in at this property on June 25th, 1906. The furnace is south of the mine on the side of the hill which furnishes ample ground for slag dump, and is so situated that the swinging arm derrick used for hoisting ore from the mine dumps the ore at the door leading to the charging floor.
The furnace has a capacity of about 50 tons per day." ( ONTARIO BUREAU OF MINES Report 1906, VOL. XV PART I p.90)

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


10 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Reiner Mielke
Bournonite
Formula: PbCuSbS3
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31C12SE00022.html
Chalcocite
Formula: Cu2S
Reference: Geological Survey of Canada Miscellaneous Paper 41
Chalcopyrite
Formula: CuFeS2
Reference: Geological Survey of Canada Miscellaneous Paper 41
Dufrénite
Formula: Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Reference: Ontario Mineral deposit Inventory MDI31C12SE00022
Hematite
Formula: Fe2O3
Reference: Geological Survey of Canada Miscellaneous Paper 41
Hematite var: Martite
Formula: Fe2O3
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31C12SE00022.html
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Geological Survey of Canada Miscellaneous Paper 41
Malachite
Formula: Cu2(CO3)(OH)2
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31C12SE00022.html
Marcasite
Formula: FeS2
Reference: Reiner Mielke
Pyrite
Formula: FeS2
Reference: Geological Survey of Canada Miscellaneous Paper 41

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bournonite2.GA.50PbCuSbS3
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
var: Martite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Dufrénite8.DK.15Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O

List of minerals arranged by Dana 8th Edition classification

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
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 3
Bournonite3.4.3.2PbCuSbS3
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
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 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)7(XO4)4Zq·xH2O
Dufrénite42.9.1.2Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
Unclassified Minerals, Mixtures, etc.
Hematite
var: Martite
-Fe2O3

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O BaryteBaSO4
O MalachiteCu2(CO3)(OH)2
O Hematite (var: Martite)Fe2O3
O DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
PPhosphorus
P DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
SSulfur
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S PyriteFeS2
S BaryteBaSO4
S MarcasiteFeS2
S BournonitePbCuSbS3
CaCalcium
Ca DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe Hematite (var: Martite)Fe2O3
Fe DufréniteCa0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
CuCopper
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu BournonitePbCuSbS3
Cu MalachiteCu2(CO3)(OH)2
SbAntimony
Sb BournonitePbCuSbS3
BaBarium
Ba BaryteBaSO4
PbLead
Pb BournonitePbCuSbS3

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

Neoproterozoic - Mesoproterozoic
541 - 1600 Ma



ID: 625655
Grenville Supergroup and Flinton Group

Age: Proterozoic (541 - 1600 Ma)

Stratigraphic Name: Flinton Group

Comments: Grenville Province Central Metasedimentary Belt

Lithology: Marble, calc-silicate rocks, skarn, tectonic breccias

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Ectasian
1200 - 1400 Ma



ID: 3185742
Mesoproterozoic sedimentary rocks

Age: Ectasian (1200 - 1400 Ma)

Lithology: Marble

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]

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)
Ann P.Sabina (1987), Rocks and Minerals for the Collector, Hull-Maniwaki, Quebec; Ottawa-Peterborough, Ontario. GSC Misc. Report 41, p.86
ONTARIO BUREAU OF MINES Report 1906, VOL. XV PART I
Malczak, J. et. al. (1985) Base Metal, Molybdenum and Precious Metal Deposits of the Madoc-Sharbot Lake Area. Southeastern Ontario. Ontario Geological Survey, Open File Report 5548, p105-107

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