Feb 9 (Reuters) - Canada’s main stock index rose at open on Tuesday, as gold miners tracked gains in bullion prices, while investors awaited signs of progress on a new U.S. stimulus bill. * At 9:34 a.m. ET (1434 GMT), the Toronto Stock Exchange’s S&P/TSX composite index was up 28.99 points, or 0.16%, at 18,359.25. (Reporting by Shivani Kumaresan in Bengaluru; Editing by Vinay Dwivedi)