On the island of Senja in Troms county, northern Norway, sits a graphite deposit that geologists describe as genuinely exceptional. The Skaland mine has an average ore grade of 31% graphitic carbon — a figure that has no equal among operating flake graphite mines anywhere in the world.
For context: most commercial flake graphite mines operate at ore grades of 5–12% Cg. Mozambique's Balama mine — one of the largest developments of the past decade — has a resource grade of around 10% Cg. Skaland is two to three times richer than the global average, and more than three times richer than many of its nearest commercial competitors.
How did this happen — and what does it mean in practice?
The geology behind the numbers
Norway's graphite deposits were formed during the Precambrian and Caledonian orogenic events, when organic-rich sediments were subjected to intense metamorphic pressure and heat as tectonic plates collided. Over hundreds of millions of years, the carbon in those sediments was progressively transformed from amorphous organic material into well-crystallised graphite.
What makes Skaland exceptional is a combination of factors that rarely coincide:
- High original carbon content in the host sediments — the protoliths at Senja were unusually carbon-rich, probably representing ancient marine organic-rich shales or coal-bearing sequences.
- High degree of metamorphism — the rocks at Senja were subjected to amphibolite to granulite-facies metamorphism, the high temperatures required to form well-crystallised flake graphite with large platelet sizes.
- Structural concentration — subsequent deformation folded and thickened the graphite-bearing horizons, creating the thick, high-grade ore lenses that the mine exploits today.
What a high ore grade actually means in practice
Ore grade matters for several interconnected reasons that directly affect product quality, cost and environmental footprint:
Less waste rock per tonne of graphite
At 31% Cg, Skaland must mine roughly 3.2 tonnes of ore to produce 1 tonne of graphite concentrate. A mine at 10% Cg must mine 10 tonnes per tonne of concentrate. This means Skaland has dramatically lower energy consumption per tonne of product, a smaller tailings footprint, and lower operating costs — all of which flow through to more competitive pricing and a much lower carbon footprint per tonne.
Better flotation efficiency
Higher-grade ore is easier to process. The graphite content is high enough that mechanical separation (flotation) achieves high recovery rates with minimal reagent use and fewer processing stages. The result is a concentrate of 91% Cg directly from the mill, with lower contamination from gangue minerals.
Larger flake sizes preserved
High-grade deposits often allow gentler grinding conditions, because less mechanical energy is needed to liberate graphite from the host rock. This preserves the large flake sizes that are most valuable for battery anode and refractory applications. Skaland's product mix includes 36% coarse (+150 µm) material — significantly higher than most competing sources.
90 years of uninterrupted supply
Skaland mine began commercial production in 1932. It has operated through World War II, through every economic cycle since, and has been a stable supplier to European industry for over nine decades. No other graphite mine in Europe has this track record.
This long production history means the deposit is well-characterised. The ore body is mapped in detail, the processing flowsheet is optimised, and customers can rely on consistent grade and particle size from year to year — something that newer graphite projects, regardless of their stated resource estimates, cannot yet offer.
The mine today
Skaland Graphite AS processes approximately 40,000 tonnes of ore per year at its on-site facility, producing a range of flake, powder and special-grade concentrates from 80% to 99% Cg. The operation is classified as a producer of EU Critical Raw Materials, and its products are REACH-compliant and fully traceable to the mine.
For European battery manufacturers and industrial buyers seeking a reliable, fully traceable raw material source, Skaland's combination of world-leading ore grade, 90-year production history, European location and comprehensive compliance documentation makes it a uniquely strong choice.