Sag and Ball Mills contain heavy steel balls that break rock up until it resembles a fine powder. The mills look like large rotating drums. The largest mills used at Mt Isa are nearly 10 meters in diameter.
Image courtesy of Xstrata Copper.

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| Inquiry-based Science Workshop, Wandoan | ||||
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| CONSTAT 2012 | ||||
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| TESEP Workshop - Round and Round with Rocks & Hot Rocks, VIC | ||||
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| GTAQ Primary Teachers' Geography Day | ||||
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| Inquiry-based Science Workshop, Gladstone | ||||
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| Earth Science Teacher PD, Cloncurry | ||||
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