Highlights

  • Field program begins June 2025 at the Wildhorse property targeting copper, gold, silver, antimony, and other minerals
  • Three mineralized zones to undergo rock chip sampling and geological mapping, including newly identified Coca Cola Zone
  • Initial assays from prior sampling include >1 g/t gold, 1% copper, 6,100 ppm antimony, and elevated tungsten and bismuth

Glenstar Minerals (CSE: GSTR) is a mineral exploration company focused on critical polymetallic minerals across North America. Its current projects include the Wildhorse and Green Monster properties in Nevada.

The company has announced details of its planned exploration work program at the Wildhorse polymetallic property in Mineral County, Nevada. The 900-acre (364-hectare) property, acquired through staking earlier this year, will be the focus of fieldwork starting in early June 2025.

The program will consist of detailed geological mapping and rock chip sampling at three previously identified mineralized zones. Among them is the Rattlesnake Zone, which has returned mineralized results in earlier sampling efforts and contains historical underground workings. The company reported that samples from this zone yielded copper, gold, silver, and antimony mineralization during an initial field visit earlier in 2025.

Two additional zones were discovered during the staking process. One, named the Coca Cola Zone, exhibits a quartz vein stockwork with visible copper oxide minerals. Mineralization in this area includes black and yellow copper oxides and veinlets cutting altered host rocks, with limestone and porphyritic rocks observed in the surrounding area. While the site contains an old prospect pit, there is no evidence of recent sampling or modern exploration activity. A third zone includes older surface workings and will be systematically examined as part of the current program.

The regional geological setting of Wildhorse was initially selected based on the presence of east-west-trending porphyry-style polymetallic mineralization. Historical data reviewed from the Anaconda archives at the University of Wyoming and the NURE stream sediment database supported the property's potential. Field notes from a 1975 site examination suggested east-dipping mineralized structures and skarn-related alteration patterns associated with an intrusive body nearby.

Initial field sampling identified quartz veinlets containing more than 1 gram per tonne of gold, 1% copper, and over 6,000 ppm of antimony. Elevated concentrations of bismuth and tungsten were also detected, consistent with mineralization often related to intrusive-driven systems.

The geology of the Wildhorse area includes a mix of Paleozoic-aged limestones, shales, and metavolcanics that are folded and faulted. A rhyolite intrusion is present near known mineralized zones, and a section of the property is obscured by gravel and landslide debris, potentially masking additional mineralized zones. According to the company, the north-south fault system observed at surface may control the distribution of skarn mineralization beneath the exposed workings.

While Glenstar is currently awaiting assay results from its recently completed drill program at the Green Monster project, the company has shifted its exploration focus to Wildhorse for the summer season. The current program is expected to help define the potential for further exploration, including drilling.

Glenstar’s activities at Wildhorse represent a continuation of its broader exploration strategy across Nevada and other jurisdictions, focusing on polymetallic systems that include critical and energy-related metals