1875, New Zealand House of Representatives, Appendix to the Journals of the House of Representatives of New Zealand, Volume 2, page 30,
The gold, both in the quartz and mullock, is very fine, and, owing to the soft and ferruginous nature of the stuff, specks can but very rarely be seen during working.
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He stopped and took up a handful of mullock. The stones clattered on the coffin; the mud remained in his hand.
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On certain days, when hot currents shimmered off Oyster's Reef, we would detect the chalk-dust of the mullock heaps, acrid; or, from the opal mines themselves, the ghastly fug of the tunnels and shafts.
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The company is considering a site at Mandurang Valley and two others near its mine in Kangaroo Flat, south-west of Bendigo, for a mullock heap that could reach 21 metres over 25 years.
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