Base Metals: Nickel Dips Investing News NetworkJul. 17, 2012 12:40PM PSTBase Metals Investing CNBC reported on base metals trading on Tuesday as nickel slipped.CNBC reported on base metals trading on Tuesday as nickel slipped.As quoted in the market news:…stainless-steel ingredient nickel was at $16,179 from $16,250.Click here to read the full CNBC report.