Company: LINMF
Filing Date: 2025-08-01
Form Type: 20-F
Source: 0001176256-25-000065
Chunk: 33

Company: Linear Minerals Corp
Filing Date: 2025-08-01
Form: 20-F
Item: Item 4
Chunk 33
---
itic units consisting of white weathered, muscovite and biotite-muscovite potassic pegmatite; pegmatitic leucogranite and fine-grained leucogranite sporadically layered with fine-to-medium-grained biotite granite; biotite- muscovite granite; garnet-muscovite granite; and sodic aplite (Breaks et al. 2003). The Allison Lake batholith is the largest fertile, peraluminous granitic mass in northwestern Ontario (Breaks et al., 2003). The batholith consists of white weathered, muscovite and muscovite-biotite potassic pegmatite intermixed and alternating with fine- grained to pegmatitic leucogranite, which often display plumose quartz-muscovite textures.

Lithium has been the primary mineral of economic interest in this area and Lithium mineralization style is dominantly hosted within pegmatite dykes and sills. The pegmatites of the area seem to be of magmatic origin and generated by the progressive crystallization of granitic magma. Tourmaline is often widespread throughout the units, and in quartz-rich patches often associated with rare pale green beryl (Breaks, et al., 2003).

Exploration

The purpose of the current work program was to verify and expand on the historical work performed and find more prospective areas for lithium exploration. The work included prospecting, mapping, and channel sampling. A

26

biogeochemical sampling program which included collecting spruce bark and tips in the area around historical blast pits.

The exploration work of 2022 was mainly carried out on the following two locations:

•   North End Jubilee Lake Blast Pit – Coordinates 542557E, 5653231N
--------------------------------------------------------------------

•   Small Lake Northeast of Jubilee Blast Pit - Coordinates 543672E, 5654846N
-----------------------------------------------------------------------------

A total of 25 select channel samples were collected from 2 historic blast pits during this work program. The samples were taken in random orientations with sample tags left behind in the channel cuts. The purpose of the samples was to determine any mineralogical relationship between the various compositions of the pegmatite body that were exposed in the pit. Samples were selected based on the mineral percentages seen and the various forms of pegmatite textures and compositions. 1 bulk sample from each pit (Sample #152626 – 100kg, and Sample #