CANADA STOCKS-TSX drops as Goldcorp plunges on results, bullion selloff

* TSX down 100.67 points, or 0.69 percent, at 14,426.90 * Seven of 10 main index sectors decline * Goldcorp dives 9 percent By John Tilak TORONTO, Oct 30 (Reuters) - Canada's main stock index was lower on Thursday as Goldcorp Inc dived after it reported disappointing quarterly results and got hit, along with other gold miners, by a drop in the bullion price fueled by positive U.S. economic data. Goldcorp shares tumbled nearly 9 percent to C$21.90 after the company's results