Great Northern Minerals reported encouraging petrography and mineralogy results from its Kuusisuo Li project in Finland. Thin section analysis and LA-ICP-MS probing resulted in the identification of striking similarities between the lithium mineralization at Kuusisu and the giant Cinovec deposit in the Czech Republic (708.2Mt @ 4,300 ppm Li2O, 500 ppm Sn and 200 ppm W). Among others, the Li-micas from Kuusisuo plot within the zinnwaldite-protolithionite transition field, share a similar lithium content of 1.0-2.1% Li2O and have a similar content of trace metals as observed at Cinovec.
Thin section photos from Kuusisuo (left) and Cinovec (right), showing zinnwaldite-protolithionite transition minerals (black) (Source: www.greatnorthernminerals.com.au)
