April 2 (Reuters) - Canada's main stock index treaded water on Tuesday, after marking its biggest daily surge in more than six weeks in the previous session, as losses in mining shares weighed.
* At 9:51 a.m. ET (13:51 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 7.11 points, or 0.04 percent, at 16,235.17.
* Five of the index's 11 major sectors were trading lower, led by materials sector's .GSPTTMT 0.1 percent dip.
* Gold futures GCc1 fell 0.1 percent to $1,287.8 an ounce. GOL/ MET/L
* The energy sector .SPTTEN gained 0.1 percent as U.S. crude CLc1 prices were up 0.7 percent a barrel, while Brent crude LCOc1 was unchanged. O/R
* The heavyweight financials sector .SPTTFS slipped 0.1 percent. The industrials sector .GSPTTIN fell 0.3 percent.
* On the TSX, 76 issues were higher, while 157 issues declined for a 2.07-to-1 ratio to the downside, with 10.78 million shares traded.
* The largest percentage gainers on the TSX were Kirkland Lake Gold KL.TO , which jumped 3.1 percent, and Torex Gold Resources Inc TXG.TO , which rose 2.2 percent.
* Canadian Apartment Properties REIT CAR_u.TO fell 3.6 percent, the most on the TSX. The second-biggest decliner was Interfor Corp IFP.TO , down 3.6 percent.
* The most heavily traded shares by volume were Prometic Life Sciences Inc PLI.TO , Argex Titanium Inc RGX.TO and Aurora Cannabis ACB.TO .
* The TSX posted five new 52-week highs and no new low.
* Across all Canadian issues, there were 20 new 52-week highs and three new lows, with total volume of 22.80 million shares.