DJ Tertiary Mineral Gets Positive Drilling Results At Kolari

LONDON, Oct 08, 2008 (Dow Jones Commodities News via Comtex) -- TTIRF | Quote | Chart | News | PowerRating -- Edited Press Release

Tertiary Minerals announced Wednesday positive results from first stage metallurgical testwork on magnetite mineralised samples from its Kolari iron project in Finland and said the grade of all concentrate samples exceeds 68% iron and averages 70%.

The 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.

The 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.

All 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.

The 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.

Phosphorus was also successfully rejected to the non-magnetic waste material and whilst the sulphur content of the concentrates is variable, mineralogical work indicates that the sulphides are liberated in the test samples and could be removed by flotation if necessary.

(END) Dow Jones Newswires

10-08-08 0234ET

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