RE: Tungsten24 Mar 2025 14:00
OCallaghans
The principal tungsten minerals are wolframite and scheelite, with associated sphalerite, galena and chalcopyrite, accompanied by an assemblage that reflects elevated fluorine, bismuth, molybdenum and tin. No economically significant gold is present. Two zones of elevated zinc and lead are found at the transition between the tungsten species wolframite and scheelite. The deposit is characterised by sharp footwall and hanging wall contacts, but also sharply defined internal lenses of high grade sulphides such as sphalerite and galena in particular.
At 31 December, 2016, the deposit contained estimated
Indicated + Inferred Mineral Resources of 78 Mt @ 0.33% WO3, 0.50% Zn, 0.25% Pb, 0.29% Cu,
inclusive of a Probable Ore Reserve of 44 Mt @ 0.36% WO3, 0.65% Zn, 0.32% Pb, 0.29% Cu (Newcrest Mining, Annual Report, 2017).
https://portergeo.com.au/database/mineinfo.asp?mineid=mn1573