"Conductor" Island is underlain by isoclinally folded and faulted package of Mesozoic to Paleozoic graphitic-pyrrhotitic cherts and chert pebble conglomerates, dacite tuffs, rhyolite flows and diorite dykes.

A sample of a chert pebble conglomerate, with a pyrrhotite rich matrix with minor sphalerite, assayed 0.19 per cent zinc and 0.8 grams per tonne silver (Assessment Report 12777).