Porphyry deposits contain multiple kinds of minerals.  Which and in what economic quantities is the issue.  That Hay Mountain may hold copper, gold, and moly is just the start of the list.

If, if Hay Mountain is something of a twin to Bigham Canyon, as J. Briscoe suggested, it will have indium too.  If I read correctly, Bigham is the only US producer of indium, a rare metal in short supply in this hemisphere.  The price is up nearly 100 percent in the last year alone.  Check this.

With thanks to Trading Economics for the chart.