free-milling ore

free-milling ore

[′frē ‚mil·iŋ ′ȯr]
(mining engineering)
Ore containing gold which can be caught with mercury by a variety of gravity processes or on blankets.
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References in periodicals archive ?
Performance for the quarter at the Con Mine continued to be driven by improved mined grade for free-milling ores.
Improved performance at the Con Mine was primarily due to better than anticipated grade for free-milling ores, while Con refractory production was on budget.
Improved performance at the Con Mine was primarily due to somewhat better than anticipated grade for free-milling ores, while successful start-up and operation of the refractory circuit and autoclave resulted in expected refractory production.