Company: FMST
Filing Date: 2025-06-20
Form Type: 20-F
Source: 0001171843-25-004004
Chunk: 66

Company: Foremost Clean Energy Ltd.
Filing Date: 2025-06-20
Form: 20-F
Item: Item 4
Chunk 66
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 of brecciation of the mafic volcanic rocks associated with a network of quartz veins. Recent field work identified Holmquist in the mafic volcanic country rock, indicating metasomatic alteration associated with the pegmatite intrusion, and litho geochemical analyses demonstrate that a broad metasomatic halo was developed. Holmquist-bearing assemblages are a function of the activity of lithium introduced into the pegmatite’s wall rock. These assemblages reflect greenschist facies metamorphic conditions and are only found in amphibolite wall rock usually replacing hornblende, pyroxene, or biotite (Heinrich, 1965; London, 1986). Based on historical and recent drill log descriptions the zonation in the Dyke 1 pegmatite can be defined as follows:

  wall zone is at the contact and is predominately composed of quartz, microcline, and muscovite, with accessory tourmaline, hornblende, biotite and rare beryl and spodumene.  

  intermediate zone has medium sized crystals of microcline, albite, quartz, muscovite and spodumene (less than 5%).  

53

  central zone has abundant spodumene (locally up to 50% but more commonly varying between 10 and 30%), albite, quartz and locally pollucite and tantalite, and accessory apatite, tourmaline, pyrr...  

  core zone is mostly composed of quartz with small to medium grained spodumene crystals (locally 15-20cm crystals of spodumene are observed) in a quartz matrix, with minor tourmaline and muscovite.  

The Green Bay pegmatite group (GB)

The Green Bay pegmatite group is located about 4.5 km east-northeast of the Violet-Thompson dyke. It consists of 7 dykes intruding metabasalts of the Amisk Group, in a 2 km zone trending approximately 55° from the westernmost, and largest, pegmatite (Mulligan1965). The individual dykes strike northwest to north-northwest with subvertical dips, mostly crosscutting the northeast regional foliation of the metabasalts. The pegmatite group is located inside two divergent faults striking east-northeast and north-northeast. If they are interpreted as conjugate horizontal shears, the attitude of the pegmat