mill ore

mill ore

[′mil ‚ȯr]
(mining engineering)
An ore that must be given some preliminary treatment before a marketable grade or a grade suitable for further treatment can be obtained.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Northern Sun currently has a contract in place with Wallbridge Mining to mill ore from its copper-nickel-PGM Broken Hammer deposit in Sudbury.
In addition to Trench 3 currently being tested, other samples of run of mill ore are to be excavated and treated similarly at the testing laboratories in Adelaide to confirm the reliability of this beneficiation opportunity over a large-scale area.
Cortez had started mining in June, and by September 1 had accumulated a sufficient stockpile of oxidised mill ore to commence milling operations and gold production.
For the quarter ended March 31, the average grade of mill ore had increased to 5.35 g/t Au, up from 3.87 g/t in the previous quarter, and the company received $29,435 in cash as well as 319.5 oz of gold.
Recovered metal-oxide sludge from California Gulch is mixed with local mill ore concentrates and shipped to an out-of-state smelter for metal recovery.
Morenci (Arizona) mined 39.1 Mt of mill ore, which, plus leaching, yielded 304,000 t Cu; Tyrone (New Mexico) 14.9 Mt of mill ore (plus leaching) yielded 144,000 t Cu; Chino (New Mexico) 15.4 Mt of mill ore (plus leaching) yielded 133,000 t Cu; and Bisbee (Arizona) precipitates and miscellaneous, 5,300 t Cu.
The company plans to custom mill ore from northeastern Ontario and northwestern Quebec.
When work is completed the mill will have both gold and base metals circuits, allowing the facility to custom mill ore from northeastern Ontario and northwestern Quebec.