A 10 metre wide band of folded, altered schist, trending 150 degrees and dipping 80 degrees south occurs in quartz diorite of the Coast Plutonic Complex. The schist is micaceous, garnetiferous, and chloritic.
Mineralization consists of disseminated and massive chalcopyrite and pyrrhotite. One lens measured 3 metres long and 23 centimetres wide. A 2.3 metre sample assayed 1.4 per cent copper and 10.29 grams per tonne silver (Minister of Mines, Annual Report 1930).
The Abruzzi showing is located along the north shore of Douglas Channel, 7.5 kilometres northeast of Kitkiata Inlet. This occurrence is hosted by a 10 metre wide zone of chlorite-altered mafic garnet-biotite-hornblende schist within a large lens of the mafic schist that is incorporated in granite (Minister of Mines, Annual Report , 1929, p.70); however, Gareau (1997) shows this locality as an area of extensive metasedimentary rocks. The alteration zone, and the enclosing schist, strike 150º and dip 80º west. Mineralization consists of sparsely disseminated pyrrhotite and chalcopyrite, with local massive patches. Stringers of massive chalcopyrite, 0.5 to 4 centimetres wide are scattered across the chlorite-altered zone; the largest chalcopyrite vein is 23 centimetres wide and extends for 3 metres length. The mineralization has been explored along the shore by a shallow shaft and two open cuts, 10 metres apart. A 2.4-metre chip sample across the southern open cut assayed 1.4 per cent copper, 10.28 grams per tonne silver and trace gold (Minister of Mines, Annual Report , 1930, p.66).