(Updates prices, sector details) June 17 (Reuters) - Canada’s main stock index was muted on Thursday as gains in technology stocks were offset by energy and mining stocks, which fell due to weakness in commodity prices. * The energy sector dropped 1.3% on weaker crude prices, while the materials sector, which includes precious and base metals miners and fertilizer companies, lost 1.7% as gold futures fell 4.3%. * Gold slipped below the $1,800 level on Thursday, after the Federal Reserve signaled earlier-than-expected interest rate increases. * Utility firm Algonquin Power and Utilities Corp fell 5.2%, the most on the TSX, and the second biggest decliner was miner Endeavour Silver Corp, down 4.7%. * At 9:38 a.m. ET (1338 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was up 10.66 points, or 0.05%, at 20,241.62. * Technology stocks were a bright a spot, up 1.5%. The sector was helped by shares of Lightspeed POS, Blackberry Ltd and Shopify Inc, which rose between 1.7% and 2.6%. * Canada added 101,600 jobs in May, the fourth consecutive month of gains, a report from payroll services provider ADP showed. * On the TSX, 92 issues were higher, while 129 issues declined for a 1.40-to-1 ratio to the downside, with 18.24 million shares traded. * The largest percentage gainers on the TSX were Restaurant Brands International Inc, which jumped 2%, and IT service firm Lightspeed POS Inc, which rose 1.7%. * The most heavily traded shares by volume were Canadian Natural Resources Limited, Algonquin Power and Utilities Corp and i3 Energy plc. * The TSX posted nine new 52-week highs and no new low. * Across all Canadian issues there were 40 new 52-week highs and two new lows, with total volume of 35.25 million shares. (Reporting by Amal S in Bengaluru; Editing by Amy Caren Daniel) Our Standards: The Thomson Reuters Trust Principles.