Summary

Mine Type	Open Pit
Stage	Restarting
Commodities	Graphite
Mining Method	Truck & Shovel / Loader
Project Timeline	...
Mine Life	...
Snapshot	Kearney Mine, one of the world's largest confirmed graphite deposits, provides a reliable and secure non-China source of graphite. The Kearney Mine remained operational through 1994. The Mine has been under careful stewardship and maintenance since its closure. In 2023, G6 Energy entered an Exclusive Joint Venture with an Established South Korean Process Technology Player to Build a Battery Anode Facility. The CSPG processing facility will be capable of processing flake graphite concentrate from both the Kearney graphite mine as well as graphite concentrate obtained from third parties. The processing equipment is modular by design allowing G6 Energy to employ a staged approach to the development of its CSPG processing capacity. The first phase of production is targeted to commence in 2025 at a rate of approximately 5,000 tpa of CSPG production capacity. The target capacity is projected to reach 25,000 tpa in 2026 ramping to 50,000 tpa by 2027.

Deposit type

• Metamorphic

Summary:

The Mine lies within the Central Gneiss Belt (CGB) of the Grenville Province. The Grenville Province extends from Lake Huron, to the west, through Quebec and Labrador, to the east, and south into New York State. The Grenville Province in Ontario has been sub-divided into two general lithologic zones and two structural zones. These are the CGB, the Central Metasedimentary Belt (CMB), the Grenville Tectonic Zone and the CMB Tectonic Zone, respectively.

The Mine lies within the domain of the CGB. This particular domain lies within the lower thrust sheet of the CGB. Structural trends within this domain swing from east-northeast to southwest as they encounter the southern termination of the Powassan Batholith. Peltic gneisses, which host the graphitic horizons, have been traced west of Highway 11 through Algonquin Provincial Park.

High grade metamorphosed quartz-feldspar-biotite-garnet gneisses are the primary rock types in the vicinity of the graphite horizons. The lithologic unit trends tend to strike north at 20º and dip to the east at 30º to 60º.

In the McGuire West portion of the Mine, where the Open Pit is located, the graphite horizon outcrops over a width of up to 200 m and extends over a strike length of 400 m from Minnow Lake to McGuire Lake. Exploration has indicated that there are two distinct graphite horizons separated vertically by a unit differing in composition from the hanging wall and footwall gneisses. The graphitic mineralization is open along strike in both directions. Garnet-hornblendquartz feldspathic gneiss occurs on the Site as lenses up to 100 m long by 30 m wide. Graphite occurs in sporadic minor amounts. The main lithology hosting the graphite mineralization is graphite-quartz-feldspar schist. The predominant minerals are quartz, feldspar with lesser amounts of biotite and sulphides. Within this unit are discrete bands of feldspar-graphite-quartz schist (AGRA, 1994).

Mining Methods

- subscription is required.

Comminution

Crushers and Mills

Processing

- subscription is required.

Commodity Production