April 29, 2021– Nubian Resources Ltd. (TSX-V : NBR) (“Nubian” or the “Company”) is pleased to release metallurgical characterization results from rock chip samples gathered from mine dumps associated with the historic Goldsmith mine at Yandoit, Central Victorian Goldfields, Australia. The 38 square kilometre Yandoit Gold Project is situated in the Daylesford gold corridor.
Six samples, consisting of sulphide-bearing quartz were sent to Gekko Laboratories in Ballarat, Victoria for metallurgical characterization and gold recovery determination. Visible gold was not present in any sample, and consequently all rocks were regarded as waste and discarded during historic production. The metallurgical work was undertaken to assist in the design of a processing circuit to extract gold from Yandoit in a potential future mining operation.
The samples are considered typical of sulphide-mineralized quartz, mined but discarded as barren during historic mining at Yandoit. Similar samples are found on surface dumps around the four sub-parallel gold reef systems discovered to date (Sardinia, Graveyard, Golconda and Welcome Line) which are the focus for the Company’s upcoming maiden drill program. All samples correlate with areas of anomalous arsenic in soil sampling. Mapping of the Welcome, Graveyard and Sardinia reefs suggests they are lateral extensions or splays off the Golconda and Goldsmith reefs that were the two dominant historical gold mines.
The six samples were crushed and processed by gravity separation at Gekko to produce heavy mineral concentrates. These concentrates were assayed for gold, silver and arsenic (arsenic being a well-known pathfinder for gold).
High gold grades were identified in all concentrate samples, despite free gold not being visible, indicating the likely presence of gold within sulphide. Gold recovery from the six concentrate samples are as follows:
The weighted average grade from the six concentrate samples produced from rock chips was 29.36 g/t and 30 g/t Ag. This preliminary testwork suggests a substantial amount of gold may be present within sulphide, that was not recoverable within historic mining operations. Gravity combined with flotation may be very effective for the Yandoit Gold Project in the future to produce a bulk concentrate for sale or further treatment. Detailed test work from drill core samples along with bulk sampling is required to confirm these results, determine the distribution of gold between free and sulphide-hosted, and determine the quantity of sulphide in quartz veins.
“We are very pleased to see such high gold grades within sulphide concentrates from Yandoit,” commented Martin Walter, President and CEO, who added, “This is invisible gold that was missed by early miners who only had the technology to extract free gold from quartz veins. These results while only performed on a modest scale are important as they show gold can be easily liberated and that good recoveries can be achieved at the Yandoit Gold Project through the use of simple conventional gold extraction processes. While more work remains to be done these results provide an early indication on what the project’s metallurgical future flow sheet might look like.”
QUALIFIED PERSON
The technical information contained in this news release relating to the Yandoit Gold Project has been approved by Mark Saxon, an advisor to Nubian, who is a “qualified person” within the meaning of National Instrument 43-101, Standards of Disclosure for Mineral Projects. Mark Saxon is an Honours BSc graduate in Geology from the University of Melbourne, a Fellow of the Australasian Institute of Mining and Metallurgy, and a Member of the Australian Institute of Geoscientists.
ABOUT NUBIAN
Nubian Resources Ltd. is a publicly traded precious and base metals exploration company listed on the TSX Venture Exchange. The Company is managed by a team of experienced mining and geological professionals. Nubian’s projects are focused in key mining jurisdictions in central Victoria and Tasmania, Australia and Peru.
For further information, please contact Martin Walter, Chief Executive Officer, Nubian Resources Ltd., at +1-416-389-5692 or martin@nubianr.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
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Certain statements contained in this press release constitute forward-looking information. These statements relate to future events or future performance. The use of any of the words "could", "intend", "expect", "believe", "will", "projected", "estimated" and similar expressions and statements relating to matters that are not historical facts are intended to identify forward-looking information and are based on Nubian’s current belief or assumptions as to the outcome and timing of such future events. Actual future results may differ materially. Although such statements are based on reasonable assumptions of Nubian’s management, there can be no assurance that any conclusions or forecasts will prove to be accurate.
Forward looking information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information. Such factors include risks inherent in the exploration and development of mineral deposits, including risks relating to changes in parameters of the Projects as plans continue to be redefined, risks relating to variations in grade or recovery rates, risks relating to changes in mineral prices and the worldwide demand for and supply of minerals, risks related to the COVID-19 pandemic and current global financial conditions, increased competition, access and supply risks, reliance on key personnel, operational risks, regulatory risks, including risks relating to licenses and permits, financing, capitalization and liquidity risks and title and environmental risks.
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