What is the Canadian 2 dollar coin made of?

Answer 1

They were made of silver until 1967 then they were made of a nickel/copper alloy

Correction. The above answer applies to higher-denomination Canadian Coins (10¢ to $1) minted up to roughly mid-1999. The 5 cent denomination was minted in multiple metals over the years:

Silver composition, size 14.5 mm

• 1858-1919: 92.5% silver, 7.5% copper (sterling silve)
• 1920-1921: 80% silver, 20% copper

Base metal composition, size 21.2 mm (similar to US nickels)

• 1922-1942: 99.9% nickel, 0.1% trace elements
• 1942-1943: 88% copper, 12% zinc ("tombac") due to wartime shortages
• 1944-1945: chrome-plated steel
• 1946-1951: 99.9% nickel
• 1951-1954: chrome-plated steel
• 1955-1981: 99.9% nickel
• 1982-1999: 75% copper, 25% nickel (same as US nickels)
• 2000-present: most coins steel/copper alloy with nickel plating, but some up to 2006 still minted in US composition.

Answer 2

The composition of the Canadian quarter* has been changed several times:

• Until mid-1967: 80% silver, 20% copper
• Mid-1967 to mid-1968: 50% silver, 50% copper
• Mid-1968 to 1999: 99.9% nickel
• 2000-present: 94.0% steel, 3.8% copper, 2.2% nickel plating

(*) As in the US, this denomination is generally referred to simply as a "quarter" among Anglophone citizens.