The Lawrence prospect is located at the headwaters of the Klehini River. This occurrence is skarn hosted.

Devonian to Upper Triassic(?) marble, which is overlain and underlain by mica schist and micaceous quartzite, strikes 030 degrees and dips steeply northwest. The sediments are intruded by a quartz feldspar porphyry dyke and irregular foliated metadiorite sills. A wide irregular belt of epidote-quartz skarn lies southeast of the marble unit. Mineralized diopside-hedenbergite skarn occurs on the northeast contact of the quartz-feldspar porphyry dyke, and along the southeastern carbonate-clastic contact. The skarn lens adjacent to the dyke extends for 40 metres, with a width of 4.5 metres, and contains disseminated galena, sphalerite and minor chalcopyrite. Mineralization along the southeastern contact can be traced for 150 metres, and consists of disseminated galena, sphalerite and chalco- pyrite. A sample across 1.8 metres of the porphyry contact skarn assayed 246.9 grams per tonne silver, 12.2 per cent zinc and 5.3 per cent lead.