NI 43-101 Technical report, Surface diamond drilling ... - Iamgold

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R a r e E a r t h E l e m e n t E x p l o r a t i o n P r o g r a m M a r c h - 2 0 1 3 W i n t e r - S u m m e r 2 0 1 2 P a g e | 108 Sections 19.2 to 19.9 are required for advanced project only 19.2 Mineral reserves estimates No mineral reserves estimates were outline for the REE Zone at this stage. 19.3 Mining methods No mine plan was drawn for the REE Zone. However, the proximity to the existing IAMGOLD Niobec underground mine makes it an obvious choice as long as the value of the mineral resources is equal or higher than the niobium ore. The value of the REE Zone material has been more valuable than the niobium ore recently with the peak in REE prices but that was not always the case historically. The alternative of mining at surface with an open pit is also attractive given the facts: • The REE Zone outcrops or is under less than of 30m Trenton limestone and overburden; • it would be a lower cost operation than underground near the surface; however contemplating a very deep pit is much less attractive; The REE Zone could be mined from surface and underground at the same time also. But with the actual works made on the Niobec underground feasibility project (based on a Blocks Caving method), an underground mining method should be preferred for this project. 19.4 Recovery methods Preliminary metallurgical test work results of a REO bulk concentrate shows recoveries between 58% and 70%. Optimization test will continue throughout 2013 and preliminary leach tests as well as extraction leach tests are ongoing. A final recovery of 53.5% of the REE is for the moment assumed. 19.5 Project infrastructure There is no specific project infrastructure for the REE Zone at the moment. However, IAMGOLD owns Niobec Inc. which operates an underground niobium mine just 1km from the REE Zone with an on-site mill and tailings disposal facilities. 19.6 Market studies and contracts This section will be addressed when IAMGOLD produces a preliminary economic assessment or scoping study. 19.7 Environmental studies, permitting and social impact This section will be addressed when IAMGOLD produces a preliminary economic assessment or scoping study. 19.8 Capital and operating costs This section will be addressed when IAMGOLD produces a preliminary economic assessment or scoping study. 3400, chemin du Columbium, St-Honoré-de-Chicoutimi, QC G0V 1L0 Canada – tel. : 418 673-4694 Fax : 418 673-3179 E-mail : info.niobec@iamgold.com www.niobec.com
R a r e E a r t h E l e m e n t E x p l o r a t i o n P r o g r a m M a r c h - 2 0 1 3 W i n t e r - S u m m e r 2 0 1 2 P a g e | 109 19.9 Economic analysis This section will be addressed when IAMGOLD produces a preliminary economic assessment or scoping study. Item 20. OTHER RELEVANT DATA AND INFORMATION There is no other relevant data or information that will make this technical <strong>report</strong> more understandable and not misleading. 3400, chemin du Columbium, St-Honoré-de-Chicoutimi, QC G0V 1L0 Canada – tel. : 418 673-4694 Fax : 418 673-3179 E-mail : info.niobec@iamgold.com www.niobec.com
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Page 137 and 138: Legend TREO (pct) 0.000 0.250 0.250
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. 6. Personnel Le personnel d’EON
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. 8. Traitement des données L’ob
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. données en profil, où les donn
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. 9. Produits finaux 9.1. Particula
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11. Annexe A - Résultats des tests
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. EON Geosciences Inc. FOM Test: MA
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. 12. Annexe B - Description des ch
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IAMGOLD Corporation Page 158 Levé
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. EON GEOSCIENCES INC Daily report
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