Solstice Minerals (ASX:SLS) said that it started an induced polarization geophysical survey at its Nanadie Well copper-gold project in Western Australia, according to a Thursday Australian bourse filing.

The survey is designed to test the immediate northern and southern strike extensions of the project's mineral resource estimate.

The results of the survey will help the firm prioritize extension targets already identified in an ongoing geological review and firm up collar locations for a maiden reverse circulation drilling program planned for the third quarter, the filing said.

Solstice Minerals' shares fell 4% in recent trading on Thursday.