PC Gold informuje o odzysku złota do 99,4% w testach w Spring Hill
Najważniejsze informacje
- •Sześć głównych próbek kompozytowych z projektu Spring Hill zostało przebadanych w domenach mineralizacji tlenkowej, przejściowej i świeżej.
- •Wszystkie próbki wykazały bardzo niskie zużycie wapna i cyjanku, co PC Gold przypisał jakości wody na miejscu, cechom mineralizacji i braku cyjanidów.
- •Spółka podała, że prace metalurgiczne potwierdziły silne odzyskiwanie grawitacyjne, niskie ścieranie i bardzo dobre ogólne wydobycie złota, a zwietrzały materiał wykazywał cechy łatwego mielenia.
- •PC Gold stwierdził, że mineralizacja tlenkowa może uwalniać się przy znacznie grubszym uziarnieniu niż wcześniej zakładano, co może obniżyć koszty przetwarzania i zwiększyć przepustowość.
- •Wyniki gęstości właściwej dla dwóch próbek wyniosły 2,94 t/m3, a dalsze testy gęstości zostaną uwzględnione w zaktualizowanym szacunku zasobów mineralnych planowanym na połowę grudnia 2026.
PC Gold (ASX: PC2) reported encouraging results from pre-feasibility study (PFS) metallurgical testing on material from the Spring Hill project in the Northern Territory, adding another data point as the company works through the technical studies that typically inform project design and resource confidence.
Six master composite samples representing the known oxide, transitional and fresh domains of the Spring Hill gold project underwent comprehensive metallurgical testwork. The composite samples were selected in collaboration with PC Gold representatives and SM metallurgists.
All composite samples evaluated showed very low consumption of lime and cyanide, which the company said reflected the high quality of site water, the characteristics of the mineralisation and the absence of cyanicides.
“the PFS metallurgical work streams confirm strong gravity recovery, very low abrasion and excellent overall gold extraction, with the weathered mineralisation demonstrating free-milling characteristics. Our pleasant surprises are that the oxide domains liberate at a substantially coarser grind size than what has previously been contemplated,” EC Ashley Pattison said.
“The grind size of the mineralisation is the critical driver towards the power consumption of the plant. At a coarser grind size, this has the potential to materially reduce grinding power requirements and therefore processing costs, relative to a finer grind, while also providing potential for higher plant throughput as less time is spent grinding the ore, which is an important driver from a production profile perspective.”
True specific gravities for MC1 and MC2, which represent oxide/transitional mineralisation from Hong Kong and Far West Lode, part of the Main Zone, both reported 2.94 t/m3.
“In our mineral resource estimate, the modelled densities for oxide and transitional were 2.57 and 2.69t/m3 respectively. The Link Zone has been identified as a key focus of the systematic density testwork due to the presence of hematite and maghemite which is expected to result in a higher bulk density value than what was utilised in the July Interim MRE,” the company said.
PC Gold said further density testwork results will be incorporated into an updated mineral resource estimate (MRE) targeted for release in mid-December 2026.
PC2 was up 1.04% to 97.0 cents, giving the company a market capitalisation of $300.7 million.
The material in this article is for information only and should not be treated as investment advice. Readers should conduct their own research and consult a certified financial adviser before making any investment decisions.
