As a result of ANTAM's drilling activities, total reserves and mineral resources of saprolite nickel ore at Buli increased by 45% to 93.95 million wmt while
limonite nickel ore at Buli increased by 2% to 100.6 million wmt.
The leaching of pyrite and chalcopyrite to malachite azurite hematite and
limonite are ubiquitous along these zones while iron ores formed as a result of skarnification are commonly hosted by calcareous rocks within these volcanics.
The Taganito mine, which is the site of the newly commissioned HPAL nickel processing plant, shipped a total of 1.4 million WMT of saprolite ore and 2.5 million WMT of
limonite ore, which combined accounted for 28 percent of the NAC's total volume.
Its samprolite nickel ores buyers are Japanese companies such as Pacific Metal, Sumitomo Metal Mining, and Nippon Yakin Kogyo while its
limonite nickel ores buyer is an Australian company, Queensland Nickel.
A typical profile of the West Block deposits shows an iron cap extending to 500 mm to 1 m below surface, underlain by the
limonite overburden to about 6 m.
There was also a temporary reduction in the deliveries of
limonite ore to the Taganito high-pressure acid leaching (HPAL) plant.
These zones contain pyrite chalcopyrite and
limonite and hydrothermal alteration products such as chlorite epidote sericite kaolinite and trimolite/sctinolite.
He informed that Korea has abundance of natural resources like coal,
limonite, steel, graphite and lead.
This review has indicated the existence of high grade saprolite nickel ore and broader
limonite and saprolite mineralisation.
In these new examples the rare Pb-Al phosphate forms botryoidal coatings on earthy brown
limonite, and lustrous pale green pyromorphite prisms to a few millimeters each are littered all over the gray-blue to bright baby-blue plumbogummite encrustations.