The Feeney tungsten zone is located on the east side of the granitic Emerald stock of the Middle to Late Jurassic Nelson Intrusions. The zone forms a relatively shallow ore body within the Lower Cambrian Laib Formation along the contact of the Reeves Member limestone and Emerald Member argillite and along the granite-limestone contact.

The mineralization consists of scheelite with minor powellite, rare wolframite and traces of molybdenite in a green and brown garnet-diopside skarn containing augite, actinolite, epidote, pyrrhotite and quartz. Both the Emerald (082FSW010) and Feeney orebodies are transected by the Granite fault and drilling east and north of the fault located the Invincible tungsten zone (082FSW218).

Most of the scheelite occurs as fine, disseminated grains in lenticular skarn zones which extend from the granite contact out into the limestone-argillite country rock conformable to bedding. The skarn zones are up to 6 metres long and average about 2 metres in width. Grades are about 0.5 to 1.5 per cent tungsten.

The Feeney mine lies north of and along strike of the Emerald mine and south of the Invincible mine. The Dodger (082FSW011) workings lie to the east. The Feeney mine operated between 1951 and 1955 and produced about 54,000 tonnes of ore (Bulletin 41, page 119). It is not known if production recommenced after this period. The production data is included with that of the Jersey mine (082FSW009).