The Toronto Stock Exchange’s benchmark index plunged Friday as resource stocks fell on retreating oil and metals prices.

The S&P/TSX composite index ended the session down 262.21 points, or 2%, at 13,096.70, its lowest level since March.

For the week, the index dropped 1.8%.

Seven of the 10 main TSX groups lost ground of Friday.

Commodities have been hit across the board as worries over the health of the global economy continue to fester.

The heavily weighted TSX energy group tumbled 3.2% as oil dropped to below $114 a barrel on faltering global demand and rising supply.

Suncor Energy fell 4.8% to $53.34, while EnCana Corp dropped 4.2% to $70.04.

The materials subgroup was even harder hit, dropping 4.2% on falling prices for copper, zinc, and particularly gold, which dropped below $800 an ounce for the first time since last December.

Eastern Platinum dropped 8.6% to $1.39, and Goldcorp fell 5.4% to $31.16.

Cameco Corp. dropped 8.4% to $30.52 as analysts downgraded the stock on worries of weaker realized uranium prices and flooding at Cameco’s Cigar Lake uranium project in Saskatchewan.

The junior S&P/TSX Venture composite index tumbled 53.85 points, or 2.7%, to 1,937.33.

The Canadian dollar inched up 0.38¢ from Thursday’s close to end at US94.43¢.

In New York, U.S. blue chip stocks rose as sinking commodity prices raised hopes of a consumer spending recovery.

The Dow Jones industrial average gained 43.97 points, or 0.38%, to 11,659.90. The S&P 500 rose gained 5.27 points, or 0.41%, to 1,298.20.

The tech-heavy Nasdaq composite index slipped 1.15 points, or 0.05%, to 2,452.52.

For the week, the Dow finished down 0.6%, the S&P 500 inched up 0.1%, the Nasdaq ended up 1.6%.