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Title: Annual Report for MLS 155, MLS 156, MLS 157, MLS 158, MLS 159, MLS 160, MLS 161 and MLS 162 for the period 2014 to 2015
Title Holder / Company: Inminerals
Report id: CR2015-0952
Tenure: MLS155;  MLS156;  MLS157;  MLS158;  MLS159;  MLS160;  MLS161;  MLS162
Year: 2015
Abstract: Following many years of exploration and characterization of the target, initially in EL 6940 and subsequently and partially in EL 9420, the ML's embodied in this report were applied over dry creek beds from close to the host being the Riddoch Amphibolite and flowing generally northwards towards the Plenty River. Exploration was focussed principally on detrital garnet and other industrial minerals in the sands of the creek bed. Substantial systematic sampling efforts were undertaken and bulk sampling, analysis and testing in part all demonstrate that the creek bed sands generally contain economic to moderately high grades of garnet. Sample intervals and methodology, appropriate for measured resource estimates, were provided by independent mining engineers and geological consultants and the sampling was performed accordingly. Mineralogical examination of the garnet in the sands within the ML's indicates that the garnet is almost exclusively dominated by almandine (approx 60%)-pyrope (approx 30%)-grossular (up to 25%, but generally below 10%) solid solutions, and sourced from garnetiferous amphibolites. From the limited garnet hardness testing carried out to date, these garnets are exceptionally hard, with Knoop hardness ranging from 1600 to 2000; they were the hardest garnets known to be currently commercially available at the time. Furthermore, the individual grains are quite fresh and show little if any sign of weathering; the grain morphologies are quite favourable, and leaching tests carried out on samples yield very low values of leachates. As previously established, garnet grades close to the host in these ML's is high demonstrating large sharp comparatively clear crystals with few inclusions and meets or exceeds all internationally accepted garnet quality criteria. Metallurgical testing on the two bulk samples programs, and the samples collected previously, assisted in the optimisation of separation techniques. Results to date serve not only to establish the viability of garnet production but have modified the envisaged processing stream to allow dry extraction of other industrial minerals if present in sufficient concentrations. While the previous metallurgical and engineering test work was comprehensive and a valuable data source, Inminerals has taken the view of re-evaluating the old process and recovery technology seeking new or improved techniques making the project more economic given the large distances from mine site to customer base. As such numerous discussion were held with engineering firms, ore samples were provided for fresh evaluation and test work and periodically these sample materials are revisited to analyse / test ideas and/or concepts that arise. During the reporting period Inminerals received notification of a Native Title Claim and or application over significant numbers of Inminerals tenements in the Harts Range area. Since receipt of the notification Inminerals has ceased all current and future programs until clear certain knowledge of the impact of the Native Title Claim and or effects will have on the future and viability of the project as planned.
Date Added: 21-Apr-2021
Appears in Collections:Minerals Exploration Reports (MEX)

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