Solstice Minerals (ASX:SLS) said a follow-up diamond drill hole at its wholly owned Nanadie copper-gold project in Western Australia has been completed to a final depth of 840.4 meters, ending in host geology at the limit of onsite rig capacity, according to a Monday Australian bourse filing.

The company said extensive zones of visible chalcopyrite were observed throughout the hole, reinforcing the scale and continuity of the mineralized system, with mineralization intersected to at least 800 meters downhole and sulphide styles and concentrations broadly comparable to those in the previous hole.

The drill hole extends the interpreted mineralized system to about 500 meters below the current 2022 mineral resource estimate (MRE) boundary, with geological logging and core processing continuing and first laboratory assay results expected in four to six weeks, the filing added.

The company is also progressing a concurrent 10,000-meter phase 2 reverse circulation drill program with eight holes completed to date, with observed geology broadly consistent with previous reverse circulation drilling.

The company's shares rose past 10% in recent Monday trade.