JOUBERT PROPERTY

Localization :

The Joubert property is located 55 km NE of the Renard diamond mine which is accessible by Road 167.

Ownership:

The property consists of a group of 247 claims, 100% owned by Stelmine and totalling 128 km².

Description :

The property lies within the La Grande Sub-province near the contact with the Opinaca metasedimentary Sub-province. Joubert contains assemblages of metasedimentary rocks composed of sillimanite-cordierite paragneiss, migmatized paragneiss and migmatites (Solomon Formation) in contact with, occasionally pillowed, metabasaltic rocks (Trieste Formation) intruded by ultramafic plutons and tonalites-granodiorites bodies.

In 2019, the discovery of a gold showing defined by a 6.81 g/t Au value from a grab sample collected west of the main Joubert mineralized zone. Stelmine secured this prospective ground by staking 88 claims contiguous to the initial Joubert property investigated during the 2018 and 2019 exploration campaigns.

The new staked area shows similar geologic characteristics to that of the initial Virginia Gold showing such as sheared, boudinaged and folded quartz veins injected in migmatized and mylonitized biotite-rich quartzofeldspathic paragneiss (arkoses and quartz arenites) interstratified with numerous bands of oxide or silicate facies iron formations. Some paragneiss are mineralized in pyrite, pyrrhotite and arsenopyrite.

This discovery is added to previous ones unearthed during the past years. Channel samples gathered by Stelmine 20 m from the initial showing revealed by Virginia Gold in 2007 (4.69 g/t Au and 0.48 g/t Au) yielded values of 0.83 g/t on 1.5 m and 1.10 g/t on 0.25 m accompanied by high arsenic concentrations (As=679-2580 ppm).The property is located in the James Bay Territory.