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Helen Mine, Chabanel Township, Algoma District, Ontario, Canadai
Regional Level Types
Helen MineMine
Chabanel TownshipTownship
Algoma DistrictDistrict
OntarioProvince
CanadaCountry

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Latitude & Longitude (WGS84):
48° 1' 32'' North , 84° 44' 24'' West
Latitude & Longitude (decimal):
Type:
Mindat Locality ID:
253679
Long-form identifier:
mindat:1:2:253679:1
GUID (UUID V4):
8b6a2770-dbc9-4839-8bd3-6edefcff41fc


The original mining operations (Old Helen Mine) were developed to mine the surficial secondary deposits of goethite with pockets of pyritic and quartz sands within the siderite and pyrite members. The Helen Mine was both an open pit and underground mine developed to mine the siderite ore body. Lying above the carbonate-facies is thinly bedded chert-wacke-magnetite iron formation. The mafic to intermediate metavolcanics of the hanging wall display well developed chloritoid porphyroblasts. The mafic metavolcanics are typically pillowed and are carbonate altered. The footwall consists of intermediate lapilli and crystal tuffs, and spherulitic flows. Coarse intermediate breccias are also commonly observed in the footwall.

History:
1897-99: A. Goetz, B. Boyer, J. Sayer - discovery, stripping, test pitting, driving adits. 1900: adit driven into mine hill, tramway for ore transport completed, open pit mining started, reported diamond drilling (3425 ft). 1901 - open pit mining to 168 feet, shaft No. 1 to 100 feet. 1902: No. 2 shaft sunk to 198 feet. 1903: No. 1 shaft to 168 feet; 3425 feet ddh. 1905- No. 1 shaft to 286 feet. 1906-09: No. 1 vertical shaft to 428 feet and 4 levels developed. 1910-15: No. 2 shaft deepened to 682 feet and 9 levels established, 4-compartment shaft sunk below level 4, inclined shaft completed to connect with 4th level; ddh of siderite ore. 1916-1917: ddh and trenching. 1918: 890 ft. adit completed to examine siderite zone, open pit mining ceases. 1937: new adit driven into Helen Iron Range. 1938: adit to 977 feet; surface trenching. 1939: open pit mining of siderite from Helen. 1943: No. 3 vertical shaft to 272 feet. 1946: Helen open pit abandoned. 1947: No. 3 shaft deepened to 921 feet, 3 deeper levels established, underground mining of Helen ored body begins. 1951: underground mining of Victoria Ore body, and discovery of Alexander ore body. 1960: mining of Helen ore body ceases.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
CCarbon
C SideriteFeCO3
OOxygen
O Goethiteα-Fe3+O(OH)
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O SideriteFeCO3
O Quartz var. Smoky QuartzSiO2
SiSilicon
Si QuartzSiO2
Si Quartz var. Smoky QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
S PyrrhotiteFe1-xS
FeIron
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2

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.

References

 
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