CANADA STOCKS-TSX slips at open, commodities weigh
TORONTO Dec 30 (Reuters) - Toronto's main stock index started the session slightly lower on Tuesday as the resource groups gave back some of the strong gains from the previous session as gold and oil prices retreated.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE dipped 6.92 points, or 0.08 percent, to 8,630.37 after the market opened. It briefly inched into positive territory, before turning negative again.
($1=$1.23 Canadian) (Reporting by Ka Yan Ng; Editing by Frank McGurty)
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