Business
Kolari Iron Testwork Results
Kolari Iron Testwork Results.
About this update from Tertiary Minerals Plc
[{"type":"text","content":"\n RNS Number : 3102F Tertiary Minerals PLC 08 October 2008 \n \n \n\nwww.tertiaryminerals.com\n8 October 2008\n\nPRELIMINARY TESTWORK CONFIRMS KOLARI IRON DEPOSIT WILL YIELD \nHIGH-GRADE IRON CONCENTRATES \n\n\n\nGrade Of All Concentrate Samples Exceeds 68% Iron And Averages 70%\n\n\n\n\n\n Potential For Production Of Sinter Feed Or High Grade Pellets\n\n\n_________________________________________________________________________\n\nTertiary Minerals plc ('Tertiary' or 'the Company' - AIM: TYM) is pleased to announce the very positive results from first stage metallurgical testwork on magnetite mineralised samples from its Kolari iron project in Finland.\n\nThe results follow an announcement earlier this year that the Company's initial drilling programme and re-logging of historic drill core has confirmed that wide intervals of magnetite iron mineralisation are present over a significant strike length on the Sivakkalehto claims at Kolari.\n\nThe first stage testwork programme comprised Davis Tube Tests ('DTTs') on 10 samples of crushed drill core taken from different parts of the mineralisation and considered to be nominally representative of the mineralisation so-far intersected in drilling. The work was carried out by SGS Lakefield in Cornwall and the results have been interpreted on behalf of the Company by Corus Consulting, a division of the Tata Steel Group.\n\nAll of the 10 reported DTT concentrates exceed 68% Iron and they average 70% iron, the desirable level for high grade magnetite concentrates to sell as sinter feed, pellet feed or direct reduction grade pellet feed. \n\nThe results of the DTTs also confirm that, in almost every case, the rejection of gangue (SiO2, Al2O3, MgO, CaO, K20 and Na2O) to the non-magnetic product exceeds 98%. This offers the opportunity of removing some gangue at a coarser particle size, pre-concentration, by magnetic cobbing or density separation using heavy media. This could produce significant savings of operating costs in the concentrator.\n\nPhosphorus was also successfully rejected to the non-magneti...