Nice to know that ISM's Langmuir project is in Canada, near the Sudbury Basin and is in a fact a Sulfide deposit. See below.

http://www.stockhouse.com/Community-News/2011/Apr/6/Focus-on-nickel---cobalt

Here's a section of the article

"It is estimated that there is about 140 million tons of nickel available in identified deposits. Nickel-bearing deposits come in 2 types:

Nickel sulphide deposits are formed by magmatic segregation. These sulfide deposits are also called magmatic sulfide deposits and are found in Australia, Canada, Russia and South Africa and are typically associated with copper and platinum group metals.

Nickel Laterite deposits are formed from weathering of ultramafic rocks and are usually operated as open pit mines. They are located principally in Western Australia, New Calodonia, Indonesia, Colombia, Cuba, Venezuela, Brazil and the Dominican Republic.

Today, nickel sulfide deposits are the primary source of mined nickel - about 58% of world’s nickel production come from nickel sulfide and 42% of mined nickel comes from nickel laterite deposits.

The trend of future nickel production is changing because of the current lack of high quality nickel sulfide exploration targets - nickel laterites are most likely to be developed as the world’s future primary nickel sources.

Three countries dominate the top three spots in terms of nickel deposits:

Russia is the world’s leading country for nickel production and Russian mining giant Norilsk Nickel is the world’s largest producer. Most of the countries nickel production (an amazing one-fifth of global production) is from Norilsk - the largest nickel sulfide deposit in the world.

Canada is the world’s second largest nickel producing country. Most of the countries nickel currently comes from the Thompson Nickel Belt in Manitoba, the Sudbury Basin of Ontario, and the Ungava peninsula of Quebec."