It's been a pretty good week for investors in precious metal stocks, with the majority of gold stocks on track to end it on a positive note. The top-performing stocks from the industry, in fact, surged by double-digit percentages at their highest points in trading this week, according to data provided by S&P Global Market Intelligence.

Some of the top stocks include:

Three factors drove these stocks higher: earnings, precious metal prices, and South Africa.

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Source Fool.com