SIRMAC
About Sirmac
The Sirmac Property consists of 24 mining claims having a total area of approximately 1,100 hectares located approximately 180 kilometres North-West of Chibougamau, in the province of Québec. A main forestry road passes next to the property and vehicles can reach the main mineral occurrences on the property using secondary logging roads. In addition, a 700 kV power line runs along its Eastern boundary.
NEMASKA LITHIUM RELATIONSHIP
On December 14, 2017, Vision Lithium announced the signing of a definitive asset purchase agreement for a 100% undivided interest in the Sirmac Lithium Property from Nemaska Lithium Inc. Vision Lithium issued $250,000 cash payment and 15,000,000 common shares of Vision Lithium to Nemaska Lithium bringing its ownership of Vision Lithium to approximately 19.9% of Vision Lithium shares. In addition, Vision Lithium assumed a pre-existing 1% NSR on certain claims comprising the Sirmac Property.
According to the agreement, Nemaska Lithium will have a pre-emptive right to participate in any future equity financing as long as it holds at least 10% of Vision Lithium’s issued and outstanding common shares. In addition, Nemaska Lithium was granted the following additional rights:
Approval from the TSX Venture was received in January 2018.
GEOLOGY
The Sirmac property is located in the North-East part of the Superior geological province, in the Frotet-Evans volcano-sedimentary belt. Four types of rocks outcrop on the Sirmac property: quartz-biotite-hornblende schists, amphibolitized flows or mafic sills, syenite pluton, and pegmatites, some of which are spodumene-bearing. The main foliation strikes E-W and has a steep dip. More than twelve granitic pegmatite dykes, whose thickness ranges from 1 to 100 m, have been identified. All of these cut the host schists and generally strike NNW-SSE (315°/350°), with an apparent sub-vertical dip and steep contacts with host rocks.
MINERALIZATION
The type of deposit associated with the lithium mineralization of the Sirmac property is a granitic, rare element-bearing pegmatite due to the presence of spodumene. In dyke #5—the known deposit—spodumene crystals are euhedral, with color and size varying from white to greenish- or grayish-white and from 1 to 30 cm in size, with an average size of 10 cm. The amount of spodumene found in the pegmatite ranges from 5 to 30% in volume. In general, the crystals are slightly altered and frequently contain rounded inclusions of quartz. A historical resource estimate was performed on the deposit by Wrightbar Mines Ltd. in 1994, with results indicating a total of 314,328 tonnes grading 2.04% Li2O.
HISTORICAL RESOURCE ESTIMATE
In 2012, Nemaska Lithium conducted a successful exploration campaign. In total, 9 sites were mechanically stripped for a surface area of approximately 13,000 m2. There were 29 channels completed over 739 metres for a total of 506 samples (selected results below, for full results see the Nemaska Lithium news release dated November 5, 2012).
Also as part of the same exploration program, Nemaska Lithium completed a diamond drill campaign of 72 shallow drill holes (3,414.5 m). A total of 1,953 samples, including quality control samples (13%), were sent to the lab for assay (selected results below, for full results see the Nemaska Lithium news release dated November 13, 2012).
Drill results from this program reported multiple intersections over 2% Li2O. More specifically, Nemaska Lithium intersected mineralization of up to 2.98% Li2O. This grade approaches the grade found at the Greenbushes deposit, which is the highest grade hard rock lithium deposit in the world.
From this work a mineral resources estimate was produced:
Historical Estimates
The existing Technical Report includes the following historical estimates for the Sirmac Property:
Table 1: Historical Estimates for the Sirmac Property with 0.50% Li2O Cut-Off Grade
Cut-Off Grade Li2O%(1) |
Category(1)(2) |
Tonnage (t)(1)(3) |
Average Grade Li2O%(1) |
Average Grade Ta2O5 (ppm)(1)(4) |
0.50 |
Measured |
185,000 |
1.40 |
70 |
0.50 |
Indicated |
79,000 |
1.40 |
80 |
0.50 |
Inferred |
40,000 |
1.10 |
60 |
Notes: