The Star (West) occurrence is located about 6 kilometres north of Kitchener on the east side of the Goat River.
Regionally, the area is underlain by the peri-cratonic Middle Proterozoic Purcell Supergroup, a thick succession of siliciclastic and lesser carbonate rocks. The Purcell Supergroup is well known for hosting a number of significant deposits that include the Sullivan (082FNE052) sedimentary-exhalative lead-zinc deposit and the Troy copper-silver deposit in Montana.
This deposit occurs within Middle Aldridge quartzites in a structural panel bounded by the Iron Range fault to the west and the Kid fault to the east. In the vicinity of the Star occurrences, the strata dips moderately (25-35 degrees) to the east with north-northwest strikes. This strata forms part of the eastward dipping limb of the Goat River anticline. Near this occurrence, there are two sills of the Middle Proterozoic Moyie intrusions that are remarkably continuous from the international boundary to just north of Leadville Creek.
Mineralization occurs within a narrow quartz vein striking 071 degrees and dipping 72 degrees to the south. The vein is irregularly mineralized with galena and minor amounts of sphalerite and chalcopyrite. Mineralization is described as pods of galena ranging from 5 to 30 centimetres in width. This vein is hosted in limy quartzites and a 2.1 metre deep pit exposes a dioritic sill.
A sample taken over 9 centimetres from the opencut assayed 720 grams per tonne silver, 61.1 per cent lead and 0.04 per cent copper; a grab sample from the ore dump assayed 363.43 grams per tonne silver, 34.8 per cent lead, 7.2 per cent zinc and 0.05 per cent copper (Minister of Mines Annual Report 1957).
In 1956, a 0.9-tonne shipment of crude ore produced 717.9 kilograms of lead, 5.9 kilograms of zinc and 870 grams of silver (Minister of Mines Annual Report 1956). A small shipment also occurred in 1965. Production is included with Leadville, 082FSE006).
Recent drilling by Kokanee Resources and Barkhor Resources in 1990 intersected bedded pyrrhotite laminae overlying disseminated sphalerite and galena in quartzites that assayed 75 grams per tonne silver, 8.29 per cent lead and 0.71 per cent zinc over an interval of 6 metres. The main vein zone overlying the stratiform zone assayed up to 92 grams per tonne silver, 8.17 per cent lead and 0.1 per cent zinc over 3 metres (Northern Miner - August 20, 1990).