Company: FMST
Filing Date: 2025-06-20
Form Type: 20-F
Source: 0001171843-25-004004
Chunk: 67

Company: Foremost Clean Energy Ltd.
Filing Date: 2025-06-20
Form: 20-F
Item: Item 4
Chunk 67
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ites would correspond to the theoretical orientation of associated tension fractures (Mulligan 1965). Out of the seven pegmatites present, the westernmost (GB) and largest was examined in detail, and two minor dykes neighboring to the east (GBB and GBC) have been sampled for geochemical characterization. The GBA dyke is largely drift-covered and poorly exposed in trenches over 250 metres along strike, which is approximately 350° with vertical dip. The width varies between 3 and 20 metres. The pegmatite contacts crosscut the regional schistosity at a low, and variable, angle. The dyke is roughly concentric in internal structure. Coarsening of grain size of the main constituents - K-feldspar, quartz, spodumene, and black tourmaline - towards the centre of the body is only locally interrupted by patches of saccharoidal albite, larger aggregates of muscovite, and by coarser albite stringers carrying garnet and beryl. Spodumene is concentrated in, but not confined to, the core. Sicklerite, most probably an alteration product of triphylite, is exceptional. The GBB and GBC dykes show similar internal structure and composition, but they are much more influenced by post consolidation tectonic activity, which is very sporadic in the GBA dyke. They split into several subparallel veins, and they generally show much more active structural evolution than the main dyke. Spodumene occurs in them only in centrally located patches.

Figure 20 - Geological setting of the Zoro Property

As evident from the preceding descriptions, the mineralogy of all three pegmatite groups is practically identical despite the widely separated locations, different altitudes, and individualized internal structures. The only difference observed in the field lies in the distinct enrichment of the GBA dyke in tourmaline and beryl, particularly towards its northern end; in the other pegmatites, these two minerals are much less abundant. Geochemical characteristics show a close relationship between the Sherritt-Gordon and Violet- Thompson groups, and a much more advanced fractionation in the Green Bay pegmatites. This is shown repeatedly by the plots of K/Rb vs. Cs in K-feldspars and muscovite, and by the Na/ Li vs. Cs plot of beryl (Fig. 20). In the Green Bay group, the highest degree of fractionation is attained in the small dy