East Asia Minerals reports encouraging metallurgical testing
Friday, January 27 2012 - 01:39 AM WIB
East Asia Minerals Corporation has reported an encouraging results of preliminary metallurgical testing, which helps forming the basis to commence more detailed studies in preparation for scoping and feasibility work at its Miwah project in Nangroe Aceh Darussalam.
The company said on Thursday that the initial results suggest that Miwah's mineralized material was readily leachable using processing techniques conventional to the gold mining industry. It is now preparing to carry out more comprehensive metallurgical testing in 2012.
All four samples were taken from core drilled by East Asia Minerals, collected under the supervision of Ian Taylor of Mining Associates Pty. Ltd. of Australia in 2011.
Metallurgical testing was performed by G&T Metallurgical Services ("G&T") of Kamloops , BC , Canada , and both grinding tests and leach recovery tests were performed by G&T.
Each sample consisted of 10 meters of core from two different drill holes (for a total of 20 meters per sample) identified to represent a similar mineralogical assemblage and gold grade.
Grinding analysis was done by JKTech Pty. of Australia on the basis of data received from G&T using the SMC Test?, which allows for testing and analysis of grinding using small sample sizes.
The Drop-weight Index (DWi) for the four Miwah samples ranged from 3.74 to 6.15 kWh/m3, described as ranging from soft to medium based on the categorization of JKTech's database.
Bond ball mill grindability indexes completed by G&T for the four samples above indicate an index of 12.9-16.6 kWHr/tonne with an index of 15.1 kWHr/tonne for sample 2 the higher grade vuggy silica alteration zone.
Editing by Benget Besalicto Tnb.