The Zett occurrence is located south of Blurton Creek, approximately 4 kilometres south east of Mara.

The area is located near the fault contact between the Proterozoic and/or Paleozoic Shuswap assemblage and the lower Paleozoic Tsalkom Formation (Mount Ida Group). Shuswap rocks comprise granite gneiss, feldspar (hornblende, biotite) gneiss and marble, while ultramafic bodies of the Tsalkom Formation consist of peridotites to pyroxenites. Chlorite (and locally talc) is the most common alteration product and usually occurs close to large shear zones.

Locally, nickel is present in sulphide form (probably pentlandite) and is associated with pyrrhotite as very fine disseminations in the ultramafic rocks. Mineralization is exposed in an irregularly shaped plug outcropping over an area of 304 by 152 metres. Two small bands of ultramafic rock cross an access road, approximately 1500 metres south of the main plug.

In 1969, seven representative grab samples from the main zone yielded an average 0.28 per cent nickel, while a sample from the southern showing assayed 0.18 per cent nickel over 3 metres (Assessment Report 2510, page 6). In 2014, a rock sample (Blur-8) from the main zone assayed 0.30 per cent nickel with 0.12 per cent nickel from sulphides and 0.142 chromium (Assessment Report 34824).

In 1969, Magna Minerals completed a program of geological mapping and rock, soil and silt sampling on the area as the Zett property. In 2014, the area was prospected and sampled as the Blurton-Zett property.