Located approximately 20km east of LKAB's iron ore mine and railhead at Svappavaara, the Vittangi graphite project (containing the Nunasvaara and Niska deposits) has a total JORC resource of 19.5Mt at 24% graphite ("Cg"), the highest resource grade of any JORC/NI 43-101 graphite deposit in the world. Nunasvaara has been declared a mineral deposit of national interest by the Swedish Geological Survey.
Vittangi Graphite Project – JORC (2012)
The Vittangi graphite deposits were first discovered in 1898, with trenching across the Nunasvaara deposit during 1916-18. Early work during the 1920s reviewed the possibility of using the graphite as a reducing agent in the production of pig iron, and Nunasvaara was declared a state mining field in 1929. Extensive work, including geophysics, trenching, core drilling (20 holes for 949m) and bulk sampling, was conducted by the SGU and LKAB during the period 1970-1982.
During July 2012 Talga undertook a diamond drilling program at the Nunasvaara deposit which led to the calculation of a new JORC 2004 compliant resource. Since then, Talga has utilised new data from drilling in 2014 and trial mining undertaken in 2015 and 2016 to update the previous Nunasvaara resource from JORC 2004 status to JORC 2012.
Following the latest Nunasvaara resource upgrade (ASX:TLG 17 September 2020) and the maiden Niska 2012 JORC compliant Indicated resource estimated to 4.6Mt @ 25.8% Cg (ASX:TLG 15 October 2019) the global Vittangi JORC (2012) mineral resource estimate now stands at 19.5Mt @ 24% Cg, using a 10% graphite cut off grade, for 4.7Mt of contained graphite.
The Nunasvaara graphite unit extends over 15km of strike, of which less than 10% has been drill tested to date. Potential exists for a significant expansion of the resource base in the future.