Krucible Metals Ltd.: Grant of Coorabulka EPM 19285 and Rare Earth R&D
December 18, 2013 (Source: Krucible Metals Ltd.) — Coorabulka EPM Grant.
The Company applied for this EPM in late 2011. Previous sampling by Krucible has returned strongly anomalous values in heavy and light rare earths (ASX announcement 11th January 2012 and ASX announcement 13th November 2012).
With the granting of this EPM Krucible can now progress its exploration plans for the tenement in 2014. Krucible’s plans include intensive gridded sampling to determine the extent of Rare Earth Element (“REE”) mineralisation below shallow cover. This will help define future drilling/costean targets.
Additional Ground Around Coorabulka
In addition Krucible has applied for selective new ground adjacent to and surrounding Coorabulka.
An application for EPMA 25126 “Valroy” was previously announced to the ASX on 30 January 2013 and is anticipated for granting in early 2014.
Krucible is now able to report on the results of the new beneficiation technology which has been conducted on the concretionary samples from Coorabulka in bench top leaching tests over the past year. As well as providing a more environmentally stable and more efficient process for beneficiating the REE, this metallurgical R&D will support a “means to market“ in our commercialisation plans for our rare earths,
The first leaching trial involving Coorabulka REE rich material has been completed by LogiCamms Limited (“LogiCamms”) (ASX:LCM) with a series of washes currently being completed in order to determine the actual proportion of Rare Earth Elements and Phosphates leached from the ore. The leaching technology used for this first trial is LogiCamms’ proprietary process for the leaching of Phosphates with simultaneous leaching of Rare Earth Elements. The trial leach utilised approximately 80 kg of “nodules” from Krucible’s Coorabulka lease. These fist-sized nodules have been leached without material size reduction. The leaching process has been conducted over a period of just under 12 months and it is conducted in a low-intensity/low-energy input manner at ambient temperature. These leaching conditions lead to low super-saturation levels expected to allow the practical recovery of Rare Earth Oxides (“REO”) by ion exchange and/or liquid- liquid extraction. By contrast, conventional phosphoric acid plant technology (the “wet process”) operates at temperatures significantly above ambient temperature and many compounds crystalize from solution given time and temperature reduction – an issue that complicates the potential for recovery of REO’s.
Laboratory analyses are planned to be conducted through January 2014 to confirm the extent of leaching that has been achieved during the leaching operations. The trials should provide key information to allow the assessment of the economics of treating Coorabulka enrichment through simple mining, dry screening to recover nodules and hea p leaching and recovery of valuable constituents using LogiCamms’ proprietary technology.
The mineralogy of the Coorabulka nodules is advantageous for the heap leaching process because of the sub micron crystal size and high nodule porosity. The nodules have a high strength and do not contain thorium.
About Krucible Metals Limited:
Listed on Australia’s main stock exchange since 2007, Krucible is an Australian-based resources company with an enviable history of discovery in phosphorus and rare earths as well as other elements. Krucible continues to explore for precious metals, base metals and strategic metals, and is transitioning to a combined exploration and mining company. Krucible has plans and expectations to ultimately enter joint ventures to develop mines on its tenements in the mineral rich Mount Isa area of Northwestern Queensland. Krucible has a strong industry-based board and management, who promote aggressive value-added mining projects.
COMPETENT PERSON STATEMENT
“The information in this report that relates to Mineral resources and Exploration Results is based on informa tion compiled by Mr Andrew J Vigar who is a Fellow of The Australasian Institute of Mining and Metallurgy and is employed by Mining Associates Limited, Hong Kong. Mr Vigar has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’. Mr Vigar consents to the inclusion in this report of the matters based on his information in the form and context in which it appears”.
This report contains forward-looking statements. These forward-looking statements reflect management’s current beliefs based on information currently available to management and are based on what management believes to be reasonable assumptions. A number of factors could cause actual results, or expectations to differ materially from the results expressed or implied in the forward looking statements.
Raj Shah has been a member of the InvestorIntel.com team for the last nearly 9 years. Recruited from Merrill Lynch, he has over 13 years’ ... <Read more about Raj Shah>