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Metallica Minerals announce Maiden Scandium at Lucknow
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Thursday, 26 Aug 2010
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Metallica Minerals Limited announced that a maiden resource estimate has been completed for the scandium mineralization at the Lucknow Scandium Laterite deposit within the NORNICO nickel cobalt scandium project in North Queensland.

The combined Indicated and Inferred resource for the entire Lucknow Sc laterite deposits stands at 6.10 million tonnes 169 gram per tonne Sc at a 70 gram per tonne cut off grade including a high grade zone of 4.0 million tonne 205 gram per tonne Sc using 120 gram per tonne Sc COG.

Metallica Minerals commissioned Golder Associates of Brisbane to undertake a block model estimate for the Lucknow scandium resource using data provided by Metallica from its recently completed drilling programs. The maiden resource was completed by using data from 298 RC drill holes comprising 7,036 meters of drilling.

The resource has been drilled out on either 20 meters by 20 meters grid or a nominal 40 meters by 40 meters grid which is sufficient to classify the resource as Indicated, where the drilling has been completed on 80 meters by 40 meters grid the resource has been classed as Inferred. It is likely that once Metallica has additional bulk density data the majority of the Indicated Resource will be classed as Measured.

The resource estimate was undertaken by Golder Associates of Brisbane using block modeling Ordinary Kriging techniques. The estimate was completed using unfolding techniques to make a wire framed model to represent the paleo laterite surfaces between drill holes and was further refined by incorporating data from sectional interpretations of the considered logged geology and scandium, nickel, cobalt, iron, magnesium and manganese assays. A nominal 60 gram per tonne Sc mineralized envelope was used to constrain the mineralization and grade estimates.

The wireframe was then filled with 10 meters by 10 meters by 1 meter blocks with the grades of the various elements estimated by ordinary kriging using a three pass search strategy and a maximum of 3 composites selected from any one drill hole. Mineralization was extrapolated a maximum of 20 meters from drill hole intercepts, depending on supporting information. Details of how the Lucknow Resource was estimated are listed at the back of this report.



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