Siren Gold (ASX:SNG)

+95% Gold and Antimony Recoveries at Auld Creek

Siren Gold Limited (ASX: SNG) (Siren or the Company) is pleased to provide an update on its Auld Creek Project in Reefton.


Highlights

  • Three metallurgical samples from Auld Creek were tested for gold and antimony recoveries at ALS in Perth.
  • All three samples gave excellent gold flotation recoveries ranging from 95-98%.
  • Antimony recoveries are modest (around 64-90%) using copper sulphate as an activator.
  • Changing from copper sulphate to lead nitrate as an activator boosted antimony recovery from 71% to 97%.
  • The rougher concentrate grade for the lead nitrate test was 44.8g/t Au and 13.2% Sb. Cleaning tests are expected to enhance these grades further.
  • Additional optimisation work using lead nitrate as an activator is expected to commence in Q4 of CY2024.
Siren Managing Director and CEO, Victor Rajasooriar commented:

” These are excellent results as we progress our Reefton gold and antimony projects into the future. The commodity pricing outlooks for both metals are excellent and the introduction of antimony as a critical mineral brings additional potential benefits to New Zealand. We are now in the final stages of completing our Auld Creek mineral resource calculations following the drilling program earlier this year and expect to have that completed in the coming weeks. Concurrently, additional metallurgical testwork will be carried out to optimise the recoveries of antimony at Auld Creek.”

Background

Three metallurgical samples were collected from Auld Creek diamond core within the Fraternal Shoot to test for both gold and antimony recoveries into a flotation concentrate. The samples were delivered to ALS Perth in May 2024 for a range of metallurgical tests under the supervision of metallurgist Graham Brock (Leo Consulting Ltd).

AC001 was collected from the top of the shoot that has little or no antimony. AC002 was collected from the middle of the shoot with high grade gold and antimony and AC003 was collected to represent the average resource gold and antimony grades (Table 1 and Figure 1).

Table 1. Auld Creek Metallurgical samples

Figure 1. Long section showing the location of the metallurgical samples (white circles).

AC001 Flotation Tests

Three tests were conducted on the low-grade antimony sample AC001. Test 1 was a standard kinetic rougher test giving a 95.8% recovery of the gold into the rougher concentrate at a grade of 51.2 g/t Au. Antimony recovery was also high, but the head grade was low at 0.05%.

Tests 2 and 3 were kinetic cleaner tests; Test 2 had no regrind and Test 3 included a regrind step. Test 2 produced a high-grade concentrate assaying 120.6g/t Au and Test 3 produced a grade of 136.6g/t Au. Gold recoveries were 91.9% in Test 2 and 87.7% in Test 3.

In summary, if this material was fed to a flotation concentrator 6% by weight would go to a 51g/t Au concentrate at 95.8% gold recovery. To reduce transport costs a cleaner circuit could be introduced such that for a small loss of recovery only 2.6% by weight at a grade of 120g/t Au could be produced. Testing showed little benefit in the regrind step.


Click here for the full ASX Release

This article includes content from Siren Gold, licensed for the purpose of publishing on Investing News Australia. This article does not constitute financial product advice. It is your responsibility to perform proper due diligence before acting upon any information provided here. Please refer to our full disclaimer here.

SNG:AU
The Conversation (0)
Heliostar Files Technical Reports on Mines and Development Project Recently Acquired in Mexico

Heliostar Files Technical Reports on Mines and Development Project Recently Acquired in Mexico

Company Overview on La Colorada:

  • La Colorada Operations show US$25.9M NPV5, 11.9% IRR, US$53.9M CAPEX and 287k total ounces produced at a US$2,000/oz gold price
  • New mineral reserve at Junkyard Stockpile supports restart of mining at La Colorada that has commenced this month
  • El Crestón expansion at La Colorada is expected to produce over 50,000 ounces of gold per year
  • Current drill program (five drill rigs) is targeting lower CAPEX and increased production for updated technical report planned for mid-2025
Au Price
(US$/oz Au)
Net Cash Flow
(US$M)
After-Tax NPV
@ 5.0% Discount Rate
(US$M)
IRR
(%)
Payback Period
(years)
Payback Multiple
2,000 154.9225.9311.92.21.4
2,600 2158.32110.0334.71.42.3

 

News Provided by Newsfile via QuoteMedia

Keep reading...Show less

B2Gold Announces Amended Shareholder Return Strategy, including New Dividend Framework and Intention to Implement a Normal Course Issuer Bid

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") announces amendments to its shareholder returns strategy to increase financial flexibility as it completes its current phase of organic growth, including the anticipated commencement of initial production from Fekola Regional in Mali, the completion of construction of the Goose Mine in Nunavut, Canada, the development of the Antelope deposit at the Otjikoto Mine in Namibia, and de-risking activities at the Gramalote Project in Colombia. All dollar figures are in United States dollars unless otherwise indicated.

New Dividend Framework

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

B2Gold Announces Amended Shareholder Return Strategy, including New Dividend Framework and Intention to Implement a Normal Course Issuer Bid

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") announces amendments to its shareholder returns strategy to increase financial flexibility as it completes its current phase of organic growth, including the anticipated commencement of initial production from Fekola Regional in Mali, the completion of construction of the Goose Mine in Nunavut, Canada, the development of the Antelope deposit at the Otjikoto Mine in Namibia, and de-risking activities at the Gramalote Project in Colombia. All dollar figures are in United States dollars unless otherwise indicated.

New Dividend Framework

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

B2Gold Announces Total Consolidated Gold Production for 2024 of 804,778 oz, Within the Revised 2024 Guidance Range; Total Gold Production for 2025 Anticipated to be Between 970,000 and 1,075,000 oz; Goose Project Remains On Track for First Gold in Q2 2025 and Total Capital Estimate Remains at C$1,540 Million

B2Gold Corp. (TSX: BTO, NYSE AMERICAN: BTG, NSX: B2G) ("B2Gold" or the "Company") is pleased to announce its gold production and revenue results for the fourth quarter and full year 2024, as well as its 2025 total gold production guidance and 2025 cost guidance for its current operating mines. All dollar figures are in United States dollars unless otherwise indicated.

Q4 and Full Year 2024 Highlights

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

Kinross to announce 2024 Q4/full-year results and 2025 guidance on February 12, 2025

Kinross Gold Corporation (TSX: K; NYSE: KGC) (the "Company") will release its 2024 fourth-quarter and full-year financial statements and operating results on Wednesday, February 12, 2025, after market close. The Company will also provide its full-year 2025 guidance, mineral reserve, and mineral resource statement as of December 31, 2024, and an exploration and project update. Kinross will hold a conference call and audio webcast on Thursday, February 13, 2025, at 8 a.m. ET to present the results, followed by a question-and-answer session.

The call-in numbers for the conference call on Thursday, February 13, 2025, at 8 a.m. ET are as follows:

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

Kinross to announce 2024 Q4/full-year results and 2025 guidance on February 12, 2025

Kinross Gold Corporation (TSX: K; NYSE: KGC) (the "Company") will release its 2024 fourth-quarter and full-year financial statements and operating results on Wednesday, February 12, 2025, after market close. The Company will also provide its full-year 2025 guidance, mineral reserve, and mineral resource statement as of December 31, 2024, and an exploration and project update. Kinross will hold a conference call and audio webcast on Thursday, February 13, 2025, at 8 a.m. ET to present the results, followed by a question-and-answer session.

The call-in numbers for the conference call on Thursday, February 13, 2025, at 8 a.m. ET are as follows:

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less

Latest Press Releases

Related News

×