Icon Resources Limited (ASX:III) Presents At Symposium China-Australia Resources Summit, Melbourne
- Icon is re-developing the Mt Carbine tungsten mine in north Qld.
- Re-treatment of the tailings expected to start December 2010.
- Hard-rock mining expected to start early 2013.
- Increased, JORC-compliant resource due early September 2010.
- On site ore-sorter tests of extensive (~18Mt) dumps starting late August 2010.
About Icon's Flagship Mt Carbine Project
Target: Tungsten Tenements: ML4867 & ML4919
Location: The Mt Carbine project is located 120km (~1.5 hours by car) to the NW of the port of Cairns in Far North Queensland with power, sealed roads, water, tailings storage and some permitting in place.
During the early 1980's Mt Carbine was Australia's leading tungsten producer, with a total recorded production of approximately 17,000 tonnes of wolframite and scheelite concentrates extracted from some 13.5 Mt of sheeted quartz veining, until low metal prices forced the closure of operations in the mid-1980's. When operations ceased, underground development was well advanced to access high-grade mineralisation extending beneath the floor of the open cut. Following the acquisition of Mt Carbine in 2008, Icon has been progressing the redevelopment of the project as the longer-term outlook for tungsten continues to improve. See the video below for more information about tungsten.
Mt Carbine is a tungsten deposit hosted by a sheeted quartz vein system up to 100m wide and potentially 400-500m long, contained in Siluro-Devonian greenstones. The southern boundary and footwall of the mineralisation is the 'Southwall Fault'. Mineralisation consists of wolframite (Fe, Mn) WO4 in quartz veins extending up to 100m from the fault, and extending at least to 600m deep, with minor scheelite (CaWO4) imprinted over the wolframite mineralisation. Wolframite crystals ranging from 0.5m to 1000mm occur in Th. quartz veins.
There is evidence that wolframite mineralisation is replaced by stiletto mineralisation with increasing distance from the Southwall fault. There is no record of exploration for scheelite north of the wolframite zone and this potential remains to be explored.
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