Toptung Limited (ASX: TTW) has received results from metallurgical testwork on tungsten from its Torrington Tungsten and Topaz Project located in northern New South Wales (Figure 1).

Figure 1. Location of the Torrington Project (Source: company)

Two independent Australian laboratories have confirmed that the Torrington tungsten concentrate is assaying at 69% WO₃ from metallurgical testwork.

The tungsten mineralisation at Torrington occurs as iron rich wolframite and ferberite. The amount of tungsten in ferberite is up to 60% with the other 40% being oxygen, iron and manganese. Pure ferberite contains 75.67% WO₃ whilst the market will accept 62% WO₃ however 65% WO₃ is preferred. Torrington’s average of 69% WO₃ from magnetic separation is a good result.

These results indicate that a pure WO₃ concentrate can be produced by non chemical gravity and magnetic separation processing methods.

For further information, visit toptung.com.au

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