The heaps out at Broken Hill are called mullocks - would these be the same? (Different content I realise)

I think this lot was waiting for processing. I remember the iron ore is richer from Tom Price than some other mine and they blend it to even it all out. Should have made notes while we were on the tour but I was too busy looking at everything and taking photos.

Yes, I thought afterwards 'mullock hills' might be the dregs left over after processing.