Vancouver, Canada precious metals streamer Sandstorm Gold (NYSE: SAND, TSX:SSL) has produced a web series for investors interested in the technical aspects of resources investing. They're calling the series "Technically Speaking" and it features Sandstorm’s mining engineer Tom Bruington, formerly of the International Finance Corporation (IFC). In Topic 1 of the series, Mr. Bruington discusses mining geometry, drill hole surveying and resource estimation:

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