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Dome mine, Tisdale Township, Porcupine Mining District, Timmins area, Cochrane District, Ontario, Canada

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Latitude & Longitude (WGS84): 48° 27' 46'' North , 81° 14' 42'' West
Latitude & Longitude (decimal): 48.4627777778, -81.245

A gold mine 2 miles SW of South Porcupine in the city of Timmins. The ore is hosted by Keewatin basalts, Timiskaming sediments and Kenoran porphyry. Gold occurs primarily in cross-cutting quartz veins and in ankerite-quartz-tourmaline veins which parallel the trend of the country rock. Tellurides are present in minor amounts. Silver is recovered at a ratio of 1 oz. of silver for each 6 oz. of gold. Of the sulphides, pyrite and/or pyrrhotite are dominant, however chalcopyrite, sphalerite, and galena are considered good indicators of gold. Minor scheelite is found in association with the porphyry ore.

The mine has been in operation since 1910.

Mineral List

22 valid minerals.

The above list contains all mineral locality references listed on 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 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.


- Metal Mining Mining Geol.(1937),A.I.M.E.: 383.
- Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, Volume I, 834pp.: 94, 340.
- Geological Survey of Canada Miscellaneous Report 57.
-Gold Deposits of Ontario,Part 1, 1971, ODM, Mineral Resources Circular No.13
Geological Survey of Canada, Open File 2161 By Fyon, J A, Green, A H

Morritz, R.P. (1990): Mechanics of formation of gold-bearing fuchsite vein at the Dome Mine, Timmins, Ontario, Canada. Earth Science 1609-1620.

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