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Cochrane Mine, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canadai
Regional Level Types
Cochrane MineMine (Inactive)
Coleman TownshipTownship
Cobalt areaMining Area
Cobalt-Gowganda regionRegion
Timiskaming DistrictDistrict
OntarioProvince
CanadaCountry

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Latitude & Longitude (WGS84):
47° 21' 29'' North , 79° 38' 21'' West
Latitude & Longitude (decimal):
Type:
Mine (Inactive) - last checked 2022
Deposit first discovered:
1907
Nearest Settlements:
PlacePopulationDistance
Ville-Marie2,831 (2016)15.8km
Temiskaming Shores10,442 (2010)16.1km
Saint-Bruno-de-Guigues2,928 (2016)19.7km
Englehart1,685 (2008)53.8km
Mindat Locality ID:
214299
Long-form identifier:
mindat:1:2:214299:2
GUID (UUID V4):
0


The property was first developed by Cochrane Cobalt Mining Co. Ltd from 1907 to 1916, and then several other companies after that with closure in 1962. The deposit was developed by two shafts with the deepest being an inclined shaft (70 degrees) to a depth of 630 ft. Total production was approx. 33,000 oz.Ag and 3,000 lbs. Cobalt.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


7 valid minerals.

Detailed Mineral List:

ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Galena
Formula: PbS
ⓘ Native Silver
Formula: Ag
ⓘ Pyrite
Formula: FeS2
ⓘ Sphalerite
Formula: ZnS
ⓘ Sternbergite
Formula: AgFe2S3
Colour: pinchbeck brown
Description: Along with the 14 inch vein of Stromeyerite Reported in the Ottawa Citizen on Aug 31, 1907, There were also reports of probably Sternbergite as a new mineral being an "amalgam of the sulfides of Silver and Iron" called "gyropyrite" That was reported in the Mining and Scientific Press on Sept 14, 1907 On page 12 of the Ottawa Citizen for Sept 3, 1907. They say the sulfide of Silver and Iron is argentopyrite! Sternbergite and argentopyrite were not sorted out until Quellmalz sorted them out from their pseudomorph Frieseite in 1970. So since specimens are unavailable and Sternbergite more common, it is probable that sternbergite occured but it is possible that Argentopyrite was there as well.
ⓘ Stromeyerite
Formula: AgCuS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘStromeyerite2.BA.40AgCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘSternbergite2.CB.65AgFe2S3
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2

List of minerals for each chemical element

SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ SternbergiteAgFe2S3
Sⓘ StromeyeriteAgCuS
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
Feⓘ SternbergiteAgFe2S3
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ StromeyeriteAgCuS
ZnZinc
Znⓘ SphaleriteZnS
AgSilver
Agⓘ Native SilverAg
Agⓘ SternbergiteAgFe2S3
Agⓘ StromeyeriteAgCuS
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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