Horizonte Minerals gets positive results from latest test work at Lontra project
26 November 2009
Horizonte Minerals, the AIM quoted exploration group with operations in Brazil and Peru, has reported positive metallurgical results from the laterite nickel discovery at its Lontra project in the Carajas Mineral Province of Northern Brazil.
Test work has indicated that the discovery is suitable for low cost heap leach processing, with significant nickel and cobalt recovery in the limonite zone. In addition, nickel recovery averaged 92% and cobalt 82% in the transition and silicate zones.
Horizonte is now planning a drilling programme for the first quarter of 2010 that will aim to define a JORC-code compliant resource.
Horizonte’s chief executive, Jeremy Martin, said: “These results indicate that the mineralogy of the Lontra deposit is amenable to tank or heap leaching at atmospheric pressure, with very good recoveries being obtained from the transition and silicate zones of mineralisation. Either of these technologies can be implemented at relatively low capital cost when compared to a pyrometallurgical route.”
Mr Martin said the results justified advancing the project to a resource definition drilling programme on the Northern and Raimundo targets initially tested in the first phase programme, as well as exploration drilling on the targets in the south and un-tested targets in the north.
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