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RB 2007/00012 Mount Monster rhyolite deposit near Keith - potential resumption of quarrying.
Over the period from 1955 until 1976 an outcrop of Ordovician porphyritic rhyolite was quarried for road-sealing aggregate and rail ballast from two quarries at Mount Monster, 12 km south of Keith. The total recorded production was 548,000 tonnes....-
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Published: 01 May 2007
