TSX falls at open as materials, energy sectors tumble

• Canada's main stock index opened lower on Friday.
• The energy sector dropped 0.9%, while the materials sector, lost 1.7%.

Canada's main stock index opened lower on Friday, hit by losses in miners after gold prices dropped more than 1% and as a drop in oil prices triggered a selloff in energy shares.

* At 9:30 a.m. ET (1330 GMT), the Toronto Stock Exchange's S&P/TSX Composite index was down 33.71 points, or 0.2%, at 16,756.69.

* The energy sector dropped 0.9%, while the materials sector, lost 1.7%.