The Jordi occurrence is located approximately 2 kilometres northeast of Mount Gillis, on a steep, north-facing slope (Assessment Report 9860).

Regionally, this occurrence is hosted within the Germansen batholith, a middle-Late Cretaceous multiphase granitic intrusion. Small rafts of hornfelsed Middle-Upper Triassic Slate Creek Formation argillites, belonging to the Middle Triassic to Lower Jurassic Takla Group, are common in the area.

Molybdenite is found in a feldspar-quartz-muscovite vein hosted by biotite monzonite of the Germansen batholith. This vein occurs near the contact between the intrusions and the basal argillites of the Slate Creek Formation. It occurs just below a large raft of hornfelsed argillite which is highly oxidized. Other phases of the batholith include diorite and granodiorite. Cutting both the batholith and country rocks are dikes of light coloured feldspar porphyry up to 20 metres wide.

The mineralized veins vary in size from 5 centimetres to 3 metres wide and contain feldspar, quartz, muscovite, apatite and sphene. A sample in 1981 analysed 0.268 per cent molybdenum and a trace of zinc (Assessment Report 9860).