The area is underlain by an east-trending belt of greenstones, tuffs, limestones and argillaceous sediments of the Carboniferous-Permian Mount Roberts Formation. These are cut by Middle Jurassic porphyritic granite and syenites of the Eocene Coryell Plutonic Suite. Coryell rocks to the north of the showing are radioactive (10,000 cpm).

Pyrite, chalcopyrite and tetrahedrite mineralization is hosted by a narrow skarn zone within limestone. Skarn development is generally weakm containing variable amounts of epidote and garnet. Mineralization is confined and controlled by two northerly to northeasterly trending shear zones, which contain quartz-carbonate stringers and lenses. Silicification of fractures is moderate through the zone.

Rex Silver Mines Ltd. conducted sampling and geophysical surveys in the area in 1983, 1985 and 1986. Taff Resources Ltd. conducted a geochemical survey on the Seal claims in the area in 1988 and 1989.

In 2006, Astral Mining Corporation conducted a helicopter-borne geophysical (electromagnetic) survey on the area as a part of the JJ property.