
- WORLD EDITIONAustraliaNorth AmericaWorld
July 23, 2023
Lithium exploration and project development company Critical Resources Limited ASX:CRR (“Critical Resources” or “the Company”) is pleased to announce assay results from the first drill hole of the summer 2023 resource extension drilling program at the Company’s 100%-owned Mavis Lake Lithium Project in Ontario, Canada.
Highlights
- Assay results from drill hole MF23-207 confirm outstanding thick intercept of high- grade lithium mineralisation at the Mavis Lake Main Zone
- The significant intersection of spodumene mineralised pegmatite returned:
- 74.4m at 1.18% Li2O, from 176.15m down-hole, including:
- 32.95m at 1.81% Li2O from 215.6m down-hole
- The intercept is interpreted to be associated with a new plunging trend, which the Company is excited to comprehensively drill test over the coming weeks
- Permits for new drill pads have also been submitted to further test the extent of this significant mineralisation trend
- The wide, high-grade intercept is located outside the current resource model and is expected to add significantly to our current Mineral Resource
- Resource extension drilling continues at the Main Zone with further assays pending
The drill hole (MF23-207) is the widest interval of spodumene mineralisation recorded to date at the Mavis Lake Lithium Project, highlighting the Project’s significant upside potential.
Assay results confirm the significance of the intercept, averaging 1.18% Li2O across the 74.4m intercept, with multiple sections grading over 1.8% Li2O and further sections grading up to 3.28% Li20.
The Drill Hole Summary can be seen in Table 1, full exploration results are provided in Appendix 1.
Thick, High-Grade Intercept
MF23-207 has intersected an exceptional interval in terms of both its thickness (and therefore implications for a future resource upgrade) and the grade of the spodumene mineralisation encountered.
The interval has an average grade of 1.18% Li2O and includes significant intervals of high-grade mineralisation. A detailed breakdown can be seen in Table 2.
The intercept is expected to add both tonnage and increased grade to a future Resource upgrade. The true thickness is 60% of the down-hole width, calculated by the contact angles relative to core axis and the modeling of ore shapes with other known drill hole data. A total true thickness is 44.6m in width, representing a significant increase of current MRE projected mineralisation shapes.
This interval is possibly a complex plunging structure that extends throughout the entire ~1.5km Main Zone area, as shown in Figure 1.

MF23-207 was designed to extend the current resource towards the north and follow known mineralisation at depth. The hole was designed to intersect the Main Zone mineralisation shapes obliquely, due to the location of permitted drill pads.
New drill permits have been submitted for the purpose of testing the pegmatite closer to true widths. Ice drilling may be conducted in the winter months to continue testing this swell area at depth.
Figure 2 shows a Cross-Section of Drill Hole MF23-207 in context with previous intercepts and modelling of the current 8Mt resource.
Click here for the full ASX Release
This article includes content from Critical Resources, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.
CRR:AU
INN Article Notification
The Conversation (0)
21 June 2022
Critical Resources
High-grade Lithium Portfolio, in a Tier 1 Location, Aligned with the World’s Green Energy Transition
High-grade Lithium Portfolio, in a Tier 1 Location, Aligned with the World’s Green Energy Transition Keep Reading...
6h
Top 5 US Lithium Stocks of 2026
Lithium stocks continued their upward trajectory in 2026 as lithium prices recovered. Spot battery-grade lithium carbonate prices climbed from about US$13,400 per metric ton in early December to more than US$26,000 by late January, a roughly 95 percent increase.Despite the sharp rebound, any... Keep Reading...
14 April
5 Best-performing ASX Lithium Stocks of 2026
Global demand for lithium presents a significant opportunity for Australia and Australian lithium companies.Australia remains the world’s largest lithium miner, supplying 31 percent of global output in 2025, though its dominance is easing as other lithium-producing countries such as China,... Keep Reading...
13 April
Top 5 Largest Lithium Reserves by Country
Those interested in the lithium sector and investing in lithium stocks are often curious about which countries are the top producers of the battery metal, but they may not stop to consider the top lithium reserves by country. Major lithium-producing countries are, of course, home to a large... Keep Reading...
10 April
Jindalee Inks US$571 Million SPAC Deal to List Lithium Assets on Nasdaq
Australia’s Jindalee Lithium (ASX:JLL,OTCQX:JNDAF) is spinning out its US asset portfolio into a newly formed company that will list on the Nasdaq via a US$571 million blank-check merger.The new entity, called US Elemental, will merge with Constellation Acquisition (OTCID:CSTAF), a special... Keep Reading...
10 April
Infographic: Era of the Glut Ends as Lithium Careens Toward 2026 Deficit
The global lithium market is undergoing a massive structural reversal.Following a multi-year period of severe oversupply that crushed spot prices, the critical battery metal is now aggressively tightening, with major financial institutions projecting a steep supply deficit by 2026."The question... Keep Reading...
10 April
Jindalee Signs BCA to List McDermitt on NASDAQ
Jindalee Lithium (JLL:AU) has announced Jindalee Signs BCA to List McDermitt on NASDAQDownload the PDF here. Keep Reading...
Latest News
Interactive Chart
Latest Press Releases
Related News
TOP STOCKS
American Battery4.030.24
Aion Therapeutic0.10-0.01
Cybin Corp2.140.00







