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Storuman Tonnage/Grade Estima
Storuman Tonnage/Grade Estima.
About this update from Tertiary Minerals Plc
[{"type":"text","content":"\n RNS Number : 5910C Tertiary Minerals PLC 17 November 2009 \n \nTERTIARY MINERALS PLC\nwww.tertiaryminerals.com\n\n 17 November 2009\n\n \nSTORUMAN TONNAGE/GRADE ESTIMATE\n\n \n· Independent Review Confirms Excellent Geological Continuity For Storuman Fluorspar Mineralisation\n\n· Potential For At Least 3 Million Tonnes Of Contained Fluorspar\n \n· Tonnage Estimate Within Drill Tested Area Almost Double Historical Estimates\n \n\n \n \nTertiary Minerals plc (\"Tertiary\" or \"the Company\") is pleased to advise that independent consultant Scott Wilson Ltd (\"Scott Wilson\") has reported on its review of the fluorspar mineralisation at the Company's Storuman project in Sweden. This is an essential component of the Scoping Study currently in progress.\n\nThe review considered the results of 39 drill holes completed by Gränges Exploration in the 1970s contained within a surface area of 2.1km by 1km (approx. 250m drill spacing), and 10 confirmatory drill holes completed in 2008 by Tertiary, mostly within the same area.\n\nScott Wilson has made an estimate of the tonnage and grade of mineralisation in the range of:\n\n28 - 31 million tonnes grading 11.2-12.3% Fluorspar (CaF2) (see footnotes 1-4).\n\nThis estimate suggests potential for over 3 million tonnes of contained fluorspar. This is nearly double that contained in a historical estimate of 15.6 million tonnes grading 12.2% CaF2 reported by Gränges in the 1970s at the same cut-off grade. Whilst this estimate is part of the public historical record and calculated according to norms applicable at that time, the 1970s estimate does not conform to existing recognised reporting codes.\n\nThe available Gränges drill assay records could not be verified to the high level of confidence required to estimate a \"Mineral Resource\" under the JORC Code (neither original assay certificates nor detailed lithological logs could be traced). \n\nHowe...