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Dumont intrusion, Launay, Abitibi RCM, Abitibi-Témiscamingue, Québec, Canada

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Latitude & Longitude (WGS84): 48° 38' 56'' North , 78° 26' 32'' West
Latitude & Longitude (decimal): 48.6488888889, -78.4422222222
Dumont ultramafic body, 27 km west of Amos.

The Dumont intrusion is a huge, low-grade nickel prospect with most of its recoverable nickel present as pentlandite, awaruite and minor heazlewoodite. Serpentine in the intrusion contains appreciable amounts of chlorine (up to slightly more than 0.9%).

Coordinates taken by GPS at mine site.

Mineral List

7 entries listed. 6 valid minerals. 1 (TL) - type locality of 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.


Eckstrand, O. R. (1975). The Dumont serpentinite; a model for control of nickeliferous opaque mineral assemblages by alteration reactions in ultramafic rocks. Economic Geology, 70(1), 183-201.

Crook III, W.W. & Jambor, J.L. (1979) Nickelbischofite, a new nickel chloride hydrate. Canadian Mineralogist 17, 107-109.

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